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50 Top 8th Grade Science Fair Projects and Classroom Activities

Find interesting ideas to engage all learners!

Whether your students are preparing for the science fair or you’re looking for classroom ideas to grab their interest, we’ve got the answers! Find lots of 8th grade science fair projects across a spectrum of topics and difficulty levels (including plenty of easy science fair project ideas). Plus, check out fun classroom demos and hands-on experiments and activities your students will love.

To make it easier to find classroom activities or science fair projects for 8th graders, we’ve rated all the projects and activities by difficulty and the materials needed:

Difficulty:

• Easy: Low or no-prep experiments you can do pretty much anytime
• Medium: These take a little more setup or a longer time to complete
• Advanced: Experiments like these take a fairly big commitment of time or effort
• Basic: Simple items you probably already have around the house
• Medium: Items that you might not already have but are easy to get your hands on
• Advanced: These require specialized or more expensive supplies to complete

Biology and Life Science 8th Grade Science Fair Projects

Chemistry 8th grade science fair projects, physics and engineering 8th grade science fair projects, 8th grade science classroom demos, experiments, and hands-on activities.

Explore human behavior, plants and animals, the water cycle, and more with these 8th grade science fair project ideas.

Measure and compare lung capacity

Difficulty: Easy / Materials: Medium

This experiment combines math and biology to measure lung capacity using a balloon. There are a lot of interesting hypotheses students can form, document, and explore while taking these measurements.

Learn more: Measuring Lung Capacity at Blog She Wrote

Guide a growing plant through a maze

Difficulty: Medium / Materials: Basic ADVERTISEMENT

Prove that plants really do seek out the light by setting up a simple or complex maze. This is a simple 8th grade science project with really cool results.

Learn more: Plant Light Maze at KiwiCo

Explore symbiosis with nitrogen-fixing bacteria

Difficulty: Medium / Materials: Medium

Many plants depend on nitrogen for growth, but how important is it? This science project compares the growth of pea plants with and without nitrogen-fixing bacteria.

Learn more: Nitrogen and Plants at Education.com

Test water quality

A water-testing kit opens up limitless options for 8th grade science fair projects. Test the water quality of local streams, swimming pools, or even the taps at home.

Learn more: Water Quality Experiment at The Homeschool Scientist

Cast animal tracks

Explore wildlife biology by becoming an expert tracker! Learn to identify tracks and take casts. Turn this into an experiment by trying different methods to take casts, or use it as a method of identifying wildlife in the woods.

Learn more: Casting Animal Tracks at Blog She Wrote

Determine a plant’s favorite music

Play different types of music for plants, then observe and document any changes in the growth and development of the plants as they’re exposed to different genres of music.

Conduct fingerprint analysis

Budding forensic scientists will love this idea. Learn to dust for prints and try a technique called “fuming” for trickier surfaces. See if you can compare prints and make accurate matches in the classroom. You can buy a fingerprinting kit just for kids  or use supplies from around the house.

Learn more: Fingerprinting at Home Science Tools

Examine the connection between personality and memory

Difficulty: Medium / Materials: Basic

Do introverts have better memories than extroverts? This science project aims to find out. Round up some willing volunteers and administer the Myers-Briggs personality test, then challenge your subjects with a memory test. The results may or may not surprise you!

Learn more: Memory and Personality at Education.com

Measure algae growth

Fertilizer runoff has become a serious cause of water pollution. In this experiment, students will see its effects firsthand and brainstorm ways to keep it in check.

Learn more: Algae and Pollution Experiment at Layers of Learning

Water plants with different liquids

In this easy science fair project, kids water plants with different liquids, like rainwater, tap water, salt water, and even soda. They might be surprised at the results!

Learn more: Effecting Plant Growth at Calm the Chaos Parenting

Beakers and test tubes, pouring and mixing … do it all with these fun chemistry science fair project ideas for 8th graders.

Perform a starch test with iodine

This simple chemistry experiment uses iodine to determine the starch content of food items. Use the process to perform a variety of 8th grade science experiments related to food.

Learn more: Starch Test at Biology Notes for IGCSE

Keep your hands warm

If you live in a chilly part of the world, chances are you’ve seen chemical hand warmers for sale. In this 8th grade science fair project, use oxidation to make your own hand warmer, and find other creative ways to use this heating process.

Learn more: Homemade Hand Warmer at Steve Spangler Science

Compare electrolytes in sports drinks

Sports-loving kids will enjoy the chance to learn just how many valuable electrolytes their favorite sports drinks contain. Compare them with water or orange juice for a cool science fair project. You’ll need a few special supplies, like a multimeter and an ohm resistor , but they’re not too expensive and they’re easy to find.

Turn juice into spheres

You’ll need a few special supplies for this experiment , but the results are so cool. Turn spherification into a science fair project by experimenting with different beverages and liquids.

Block the sun’s UV rays

Use color-changing UV beads to test the protective power of medicine bottles, hats, clothing, and more. This is an easy 8th grade science fair project with nearly endless possibilities.

Grow a carbon sugar snake

Remember those little black pellets that fire up into long snakes on the 4th of July? This is the same concept but much bigger! The simple chemical reaction of sugar and baking soda makes it happen. Turn this into an 8th grade science fair project by varying the formula to create even bigger results!

Learn more: Carbon Sugar Snake at KiwiCo

Create a rainbow of flames

You can change the color of fire by adding chemicals found at your local grocery store—what a sight! How can you use these flame colors to determine the chemical content of other materials? Sounds like a cool 8th grade science fair project!

Get your laundry really clean

Find out if all those laundry detergent commercials are really telling the truth with this 8th grade science fair experiment. Test their cleaning power on a variety of stains and fabrics, and analyze your results.

Learn more: Science of Cleaning Products at Steve Spangler Science

Study the effects of acid rain

Difficulty: Easy / Materials: Basic

In this project, students use chalk as a stand-in for stone to learn how acid rain affects buildings, statues, and more. Turn this into a science fair project by exploring ways to mitigate the effects of the acidity.

Extract bismuth from Pepto Bismol

Difficulty: Advanced / Materials: Advanced

This is the kind of project that really makes you feel like a scientist. Grinding tablets with a mortar and pestle, filtering in beakers, heating over a Bunsen burner … this is what chemistry is all about!

Learn more: Extracting Bismuth at Popular Science

Optimize fermentation temperature

Delve into the mystery of how temperature affects the fermentation process and determine the optimum temperature for yeast development. (Test your hypothesis by baking a loaf of bread!)

Learn more: Hot Yeast at Elemental Blogging

Brew up some root beer

Who says science can’t be delicious ? Tinker with the basic root beer recipe to make it sweeter, fizzier, or better in any way you like!

Learn more: Root Beer Science at Steve Spangler Science

For those who love to build and tinker, try a science fair project that experiments with various physics concepts like energy, electricity, motion, and more.

Build a better light bulb

First, use the steps at the link to build a simple light bulb with a jar, some wire, and a 6-volt battery . Then, turn it into an 8th grade science fair project by tinkering with the various materials to make a light bulb that lasts longer, burns brighter, or is powered by an alternative source.

Learn more: Build a Light Bulb at 123 Homeschool 4 Me

Test the strength of interleaved paper

Paper seems smooth and slides apart easily, right? Not when you add friction into the mix! Mythbusters was amazed at how much strength it took to pull apart two interleaved phone books. Try this with smaller books for an 8th grade science fair project that people won’t believe!

Stand on a pile of paper cups

Combine physics and engineering and challenge 8th grade science students to create a paper cup structure that can support their weight. This is a cool project for aspiring architects.

Learn more: Paper Cup Stack at Science Sparks

Cook up a tasty treat with solar energy

Students can design and build a solar oven, and then use it to cook food to compare the cooking time and temperature with a conventional oven. See if you can improve on the original design by changing up the materials or construction.

Investigate advanced properties of liquids

Do surface tension and viscosity decrease with increasing temperature? Find out in this 8th grade science fair project.

Learn more: Surface Tension and Viscosity at Education.com

Make a solar desalinator

Clean freshwater is a valuable commodity. Construct solar-powered desalination devices with readily available materials, and find the most effective desalination methods.

Engineer a roller coaster loop

Kids may have created marble roller coasters before, but have they ever built one with a loop-the-loop? They’ll have to experiment to find out which initial height gives a marble the speed it needs to complete the journey.

Capture a picture of lightning

Difficulty: Advanced / Materials: Medium

Lichtenberg figures capture the branching path of electricity as it travels through an object. You can make your own in a variety of ways, including burning it into wood or acrylic.

Learn more: Lichtenberg Figures at Science Notes

Crash cars for science

This is a great class project for teachers, but it’s also excellent for an 8th grade science fair project. Build cars and crash-test them to learn the best methods of keeping passengers safe.

Learn more: STEM Car Crash Project at The Ardent Teacher

Discover the center of gravity

Once you find and maintain its center of gravity, almost any object will balance, even in surprising circumstances. Using this concept, what amazing objects can you balance and where?

Learn more: Center of Gravity at Rookie Parenting

Power up homemade batteries

Building batteries is a classic science experiment for any age. Make it into an 8th grade science fair project by trying different variables and exploring the amount of power you can produce.

Learn more: DIY Batteries at 123 Homeschool 4 Me

Assemble a spring balance scale

Apply Hooke’s law to find out if the stretching of a spring can be used to accurately measure the weight of objects. The materials are simple, but you’ll need patience and physics to calibrate a spring and use it to test weights.

Design a robotic hand

This is a project that can be tweaked by coming up with ways to improve upon the design. Can you build a hand that can pick up a ball? How about one that can pluck up a piece of string? So many possibilities!

Learn more: DIY Model Robot Hand STEM Activity at Mombrite

Build an infinity mirror

Experiment with optical illusions by creating a tunnel of lights that seems to stretch away into infinity. Eighth grade science students will learn about engineering and the physics of optics along the way.

Construct a Rube Goldberg machine

Create a machine to complete a simple task in the most complicated fashion! This is a neat 8th grade STEM fair project because it allows you to use a variety of physics concepts in a fun way.

Explore a wide variety of 8th grade science concepts with these fun and engaging activities.

Protect an egg in a crash

We love this spin on the classic egg-drop project. In this version, students build a structure to protect an egg during a collision with a wall, making the connection between crash tests and physics concepts.

Drop an egg to prove the first law of motion

This experiment looks like a magic trick, but it’s firmly grounded in Newton’s first law of motion. When you knock the pie tin out of the way, the egg falls straight into the glass thanks to inertia. (Worried about making a mess? Use plastic eggs instead.)

Learn more: Egg Drop Inertia Challenge at Steve Spangler Science

Break out the leaf blower to teach Bernoulli’s principle

Eighth grade science students have probably seen a Bernoulli demo or two, often with straws and Ping-Pong balls. So grab their attention by trying it with a leaf blower and a beach ball instead!

Assemble a Newton’s cradle

Newton’s cradle is a fascinating way of demonstrating momentum and energy transfer. Follow the directions at the link to build one, or challenge 8th grade science students to experiment with their own construction methods.

Learn more: Newton’s Cradle at Babble Dabble Do

Extinguish a candle without blowing it out

Combine an acid/base experiment with some fire science in this really popular classroom science demo. It seems like magic, but it’s just science!

Relight a candle without touching it

Tell students you’re going to relight a candle without touching the flame to the wick. The results will boggle their minds!

Learn more: Magic Traveling Flame at Steve Spangler Science

Demonstrate the “unpoppable” balloon

Your students won’t believe you when you say you can hold a balloon up to a flame without popping it. Use the conductivity of water to prove your point.

Extract your own DNA

DNA is the blueprint of life, and you’ll be surprised at how easy it is to extract your own with a few simple supplies. Preserve it in alcohol in the freezer when you’re done.

Learn more: How To Extract DNA at Home at Home Science Tools

Build a trash can air cannon

This is such a fun way to demonstrate an air vortex! It takes a little effort to build the air cannon, but you can use it year after year for amazing 8th grade science demos.

Separate water into hydrogen and oxygen

Use electrolysis to prove that water really is made up of hydrogen and oxygen. It’s a simple concept but one that never fails to amaze.

Learn more: Separating Water at Navigating by Joy

Assemble a ring of Pringles

Everybody loves an edible STEM challenge! Here’s one that seems simple but takes some time to work out: Build a ring of Pringles chips without using any other materials.

Construct a cup holder

Can your 8th grade science students build a device to stabilize and carry two cups of water, using only a few simple supplies? Oh, and can they manage it in just 5 minutes? This timed challenge pushes their creative engineering limits!

Learn more: Cup Holder STEM Challenge at Homeschool Creations

Navigate a light maze

Here’s the STEM challenge: Bounce a beam of light around a corner past an obstacle. Increase the difficulty by adding more obstacles and variables.

Engage your 8th grade science students further with these 24 Science Kits for Middle and High School That Make Hands-On Lessons Easy .

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All Science Fair Projects

1000 science fair projects with complete instructions.

75 Science Fair Projects for 8th Graders

Are you looking for an intriguing eighth grade science fair project? We've got you covered with this carefully selected list of science fair projects specifically for eighth graders.

8th Grade Science Fair Project FAQ

What are some easy 8th grade science fair projects.

Each one of these easy science fair projects is ideal for eighth grade science students to learn important scientific concepts using readily available materials. These are terrific project ideas to get 8th grade students interested in science and have fun doing it!

Static Electricity: What's Attracting?

The Effect of Temperature on Fingerprints

Soap and Surface Tension

Bicycle Helmet Shock Absorption

Glowing in the Dark

Growing Plants from Fragmentation

Extracting DNA from Onions

Temperature and Solubility

Viewing Sunspots

Bacteria on Chopping Boards

Science fair project details right above the FAQ!

What is the best 8th grade science project ever?

We think the Extracting DNA from Onions science fair project is awesome for middle school students! This science project aims to demystify DNA by showing how easy it is to extract from onions and what DNA looks like when it's outside of the cell. It's a classic science experiment to learn about DNA and how DNA can be extracted from many kinds of cells. Check out the video on the project page where DNA is extracted from strawberries too! What other fruits and vegetables can you extract DNA from?

If you're looking for more 8th grade science projects, check out the 8th grade science fair projects at the top of this page! 

Check out more Best Science Fair Projects →

What are some cool 8th grade science fair projects?

Get ready to be amazed by these super cool science projects for 8th graders! With just a few common items, get ready for have tons of fun with a cool science fair project!

Soap Bubbles in Carbon Dioxide

Exploring Cave Formations

Busting Acne Bacteria

What are 5 testable questions for 8th grade?

A testable question is a question that we can answer through a science experiment. To do this, we do a control science experiment, then we change one thing in the experiment to see how it affects what happens. This is how we can discover the answer to our question! Eighth grade science students can use the following testable questions for a science fair project.

Do detergents affect plant growth?

Can drink and food taste different just by changing its color?

Does the color of light affect photosynthesis?

Does temperature affect seed sprouting?

What makes popcorn pop?

Here are more testable questions along with their science projects →

What are the top 10 science projects for 8th grade?

These are our top 10 science projects for 8th grade, with projects from Biology, Chemistry, Physics, Engineering and Environmental Science. These projects can be used as science fair project ideas or as a fun experiment to explore different areas of science!

Testing Fabric Types for Water Resistance

The Greenhouse Effect

Science project details right above the FAQ!

Can I do a 8th grade science fair project in a day?

Yes! Quick experiments or making a model can be a great option for a science fair project! Since you're short on time, they all use readily available materials. Here are quick science fair project ideas to get you started.

The Solar System: See it in the correct scale!

Create your own solar system model to scale on the sidewalk and take a walk through space! Solar System Scale Model on the Sidewalk

Chromatography reaction: Separating out colors!

Have you ever wondered why leaves change color in the fall? Let's find out by using chromatography to separate the colors of a green leaf! Uncovering Fall Colors

Heat reactions: Heat speeds things up!

Does the temperature of a room affect how quickly a candle burns? Burn Rate of a Candle

What are some hands-on ways to find inspiration for my science fair project?

There may be free admission days or free passes to a science museum near you! Check your local library for free museum passes, nearby science museums for free entrance days and your credit card for offers.

Find a science museum near you and prepare to be awed by all that you can learn there! I always learn something new and am inspired whenever I go to a science museum!

How do I start a science fair project?

What should I do after I have a science fair project idea?

How do I make a science fair board?

What is the scientific method?

What is the engineering design process?

Where can I find a science fair competition?

The www Virtual Library: Science Fairs website also has a collection of science fairs from all over the world, as well as national, state, regional, local, and virtual competitions!

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Kentucky is working hard to educate non-traditional students in higher ed | opinion, more australians repaying student loans early, uhv school psychology grant funds 10 students’ education, university of dayton to shed faculty, weigh program cuts, 30 higher ed it influencers to follow in 2024, roanoke higher education- retail, oklahoma voice: most grads from state’s higher education system are retained in state workforce, n.c. a&t enrollment tops 14,311, arkansas higher ed subcommittee divided on the future of dei, 16 of the best 8th grade science projects and experiments.

Are you looking for science activities to do with your 8th graders? No sweat. We have you covered. Check out our list of 16 science projects and experiments that you can try with your 8th graders this month.

• Yeast Metabolism with and without Aeration | Sciencebuddies.org – Grades 6-8 Biology experiment that evaluates the effects of glucose metabolism in yeast.
• Aspirin Absorption in Carbohydrate Solutions | All-Science-Fair-Projects.com – Grades 6-8, Does aspirin absorb into the bloodstream quicker if taken with a carbohydrate food? Test aspirin dissolution in an assortment of carbohydrate solutions.
• Bacteria and Toothpaste | All-Science-Fair-Projects.com – Grades 6-8, Do you know which toothpaste cleans your teeth best? In this project, you will row bacteria from your recently brushed teeth in petri dishes to find out the answer.
• How Do Roots Grow When the Direction of Gravity Changes? | ScienceBuddies.org -Grades 6-10, Plants respond to gravity by stems that grow upward and roots that grow downward. Experiment with germinating seeds and rotate them to make up down and down up. How do you think the growing seedlings will respond?
• Hydroponics vs. Soil Growth | All-Science-Fair-Projects.com – Grades 6-8, In this project, students find out if plants grow better in soil or a hydroponic solution.
• Puppy Proportions: Your Dog’s Early Months | Sciencebuddies.org – Grades 6-8, Find out how a puppy’s weight, growth, and proportions change early in their lives.
• Do Migratory Birds Like It Hot? | Sciencebuddies.org – Grades 6-8, Pick a species of bird and determine if there is a correlation between air temperature and where and when the birds migrate.
• That’s a Real Smile! …or is it? | ScienceBuddies.org – Grades 6-8, Can people tell the difference between a fake smile and a real one? Gather information from dozens of volunteers to find out.
• Build a Raft Powered by Surface Tension | Sciencebuddies.org – Grades 6-10, Learn about the properties of surface water tension, and use it to propel a raft.
• Paw Preference in Pets | Sciencebuddies.org – Grades 7-10, Are animals left-handed or right-handed like humans?
• Bat Detector: Listen to the Secret Sounds of Bats | Sciencebuddies.org – Grades 7-10, Study the behavior of bats to find out how do they use echolocation to catch their prey
• Saving Migratory Animals | ScienceBuddies.org – Grades 7-10, They’re here today but could be gone tomorrow. Examine the migratory path of a bird species and the similarities and differences between their winter and summer habitats. Recommend which locations should be preserved to protect these species.
• Globular Clusters | Sciencebuddies.org – Grades 7-10, Explore “star gangs” in the Milky Way and beyond. Globular cluster are compact groups of about a million stars that move around in galaxies. Use statistical data to learn how globular clusters help us better understand the universe.
• Demonstrating the Separation of Mixtures | Education.com – Grades 7-10, Separate recycled objects to illustrate how mixtures are created.
• Customize Your Own Drum Set! | ScienceBuddies.org – Grades 7-10, Build a drum set using household materials, a computer, Scratch, and a PicoBoard. Program your drum set to create a synthesized Hip hop, rap, classical, techno, or electronic drumbeat.
• Harmful Algal Blooms in the Chesapeake Bay | Sciencebuddies.org – Grades 8-12, Harmful algal blooms affect the quality of water and impact people, marine animals, and birds. Study how water quality changes before, during, and after algal blooms.

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Easy 8th Grade Science Fair Projects

Finding easy 8th grade science fair projects is not that tough. What you need to concentrate on is how you are going to take the challenge of completing the experiment and providing a legible hypothesis....

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Finding easy 8th grade science fair projects is not that tough. What you need to concentrate on is how you are going to take the challenge of completing the experiment and providing a legible hypothesis….

In middle school, when you are designing an experiment, you will be asked to present the data in tables and graph form. No handwritten material is submitted, so all the text for posters and reports need to be typed. It is hugely recommended that you don’t take extensive help from the parents or friends, as it will only keep you back from actually understanding the experiment’s concept. And whenever you take help for any uncommon knowledge for your science fair, you are obligated to cite references.

Science fairs are an excellent way to earn better grades and win college scholarships and grants. Students get an amazing chance to win exciting prizes from these projects as well. In difficult or simple 8th grade science fair projects, the concentration is kept on including scientific methods and experiment designs.

Chemistry Projects

Take a look at some chemistry projects for 8th graders in this section. If you feel that chemistry is the one subject you are good at or wish to learn more about, then these projects are certainly going to help you. Seek advice and suggestions from your teachers and parents in order to complete your choice of project on time, with accuracy.

How to make sun prints with construction paper

Objective Your objective will be to use various lighting techniques and determine whether the sun exposure times have any effect on the colors and images. If done accurately, you will be able to see how various color of light affects the sun prints’ brightness.

How to… You’ll need colored construction paper, different-shaped fresh leaves, cardboard, and lots of sunlight. First, place the construction paper in front of the sunlight for few minutes. Second, you will place the leaves in whichever design you wish on the paper itself and leave it outside for about an hour or so.

Objective Although the objective of this experiment is collect pH readings, acidity levels, and ammonia and nitrate contents in the water, you can also get a whole lot of information by finding out what causes the pollution in the first place.

How to… Due to various human activities, the rivers and streams across the world are getting polluted day by day. Your objective in this experiment is to find out the pH reading, acidity levels, and ammonia and nitrate contents in the water. Take samples from different upstream and downstream rivers and streams to find out how much pollution actually exists.

Physics Projects

Take a look at some physics projects for 8th graders in this section. As physics provides information on what matter is made of, its behavioral patterns, the laws of physics, its restrictions, etc., the amount of information you can learn is humongous. Here are a few projects that you might be interested in learning more about.

Color of Hair and Static

Objective What is static? Why does our hair strands stand up? Does the color of our hair matter when we talk about static and its effects? In this experiment, you have to find out if the color of our hair has any effects on the amount of static electricity produced.

How to… For the experiment, you need to get black, gray, blonde, red, and brown hair samples. You need a balloon, a copper plate, a ground connection, jumper wire with crocodile clip ends, and individual wigs of all hair colors.

Quickly Cool Soda Cans

Objective During summertime, having a chilled soda can in your hand is so refreshing. But waiting for the can to cool in the refrigerator takes so long. Keeping that in mind, do you ever wonder why does it take a certain amount of time to cool a soda can?

How to… Are there any other ways to cool a room temperature soda can? A bucket of ice, freezer, or ice-water? Which is the fastest? Would conduction, convection, evaporation, and radiation techniques do the trick in transferring heat out of the soda can?

Human Behavior Projects

For our next projects, we will be taking over some human behavioral experiments. Do people fascinate you? Their behavior towards others, the impacts of our memories and dreams, why do we make certain decisions, etc.; if finding answers to these questions interests you, then human behavior projects is right for you.

Are smiles contagious?

Objective We all know that yawning, coughing, and clearing throat are some of the actions which are contagious. But have you wondered if smiles could be one of them? You are walking on the curb and pass many strangers coming your way. If you smile at them, do they do the same?

How to… This is a simple experiment which doesn’t require a lot of your time; a day will suffice. To conduct the experiment, you will have to investigate if truly, smiling is or isn’t contagious. Can it be a chain reaction? Walk down the street or at your school, smile as you walk past a strange face. Do they return the smile or leave you hanging? Record your findings and come to a conclusion.

Can we make colors with lights?

Objective By combining two or more colors with each other, we can make a new color altogether. Example: red and green makes yellow, blue and red makes purple, and white and green makes light green. Does this same theory apply to light?

How to… Now could this same concept be used to make colors with light? Can colored lights have the same effects as crayons and paints? Do the experiment and find out the answer if the principle is applicable.

Animal Science Projects

Studying the behavioral changes and unique attributes of animals and birds is fascinating. The study goes beyond the biology of animals and really understanding what goes on inside these tongueless animals.

How do ants communicate with one another

Objective We all know that ants live in a colony and work hard. So do they communicate with one another in order to form such great teamwork? Do ants have various senses to talk to one another in order to warn or convey certain messages?

How to… You can either find a group of ants in your backyard or get an ant farm for the experiment. Now, to check whether they have different senses as humans and whether or not they respond to it, do this:

• Take a tiny object in front of them and wave it. See whether or not they see the object and avoid getting hurt by it.
• Clap your hands or blow a horn to check their sense of hearing.
• Spray a little bit of deodorant in their path to check their sense of smell.
• Finally, use a pen to tap on the ground to see whether they have the sense of touch.

Do different breeds of dogs mingle in harmony?

Objective Dogs are generally kind, smart, and friendly animals as they get along really well with humans and other animals. But does that mean they get along with their own breed or can coexist with other dog breeds as well?

How to… For the experiment, you’ll need to find different dog breeds as the experiment can be done in multiple layers. You can record the findings between 2 dogs of similar and different breeds. Next, you can see if the gender of the dogs has any effect on the findings.

Computer Science Projects

Along with the scientific study, computer science involves practical study of computation, artificial intelligence, date transferring and processing, programming, and advanced algorithmic properties.

Does caffeine stimulant impact typing speed?

Objective Whenever we feel sleepy or tired, but cannot find time to rest, we often turn to caffeine as a stimulant. So, does it really help us or is it just our minds playing tricks on us. In this experiment, we wish to find out whether or not caffeine advances the typing speed.

How to… You’ll need a laptop, a few volunteers of different age groups and gender, and two to three caffeinated beverages. After drinking the beverages, wait for a few minutes before beginning the experiment. Record your findings once the volunteers begin after consuming the beverages.

Can we remember one font better than the other?

Objective Have your ever noticed, while typing on the laptop, our brain prefers certain types of fonts more than others. Do these fonts have anything to do with how they appear to our eyes? Perhaps the soothing qualities of the fonts make us remember them more. Or is there any other reason behind it?

How to… Choose 2 fonts and ask your friends to volunteer for the experiment. Now type at least 5 sentences (short to long) in the first font and 5 sentences in the second font. Once the typing is over, ask the volunteers to read all the sentences for about 5 seconds. Finally, you will ask the volunteers to repeat the sentences they just read. Do they remember the sentences? And if yes, then from which font?

These ideas are a good way to begin thinking or narrowing down on your selection. Here’s another ScienceStruck article that will give you interesting topics’ list . Remember, you will enjoy working on a project only if you are truly interested in it. No child likes studying or learning if it is forced on them.

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40+ Easy Science Experiments For Students: Lots Of Great Ideas

Categories Activities & Ideas

Science is one of the most intriguing subjects to learn in school. It’s so varied and it can be a lot of fun for kids – especially when it comes to conducting science experiments. However, science experiments do not always have to be about beakers and bunsen burners. There are several ways that students can conduct easy science experiments, and it does not require a lot of resources or money to do so.

But what exactly are the options?

Well, if you are a teacher or a parent looking for easy science experiments for students, then we’ve got you covered. Our comprehensive list below shows you plenty of options that they can take part in.

So, if you’re ready to find out a lot more – then read on for lots of ideas!

Easy Science Experiments For Students! 

Without any further delays, let’s dive right into this list of some easy science experiments for students. We’re sure that your young minds will love some of these!

1. Dancing Pepper

Perhaps one of the most intriguing and fun experiments is the dancing pepper experiment. It shows kids how substances behave differently when placed on water in an effort to show how molecular behavior can differ with surface tension.

This can result in some things appearing to dance, so it’s a pretty fun experiment to observe! 

2. Colored Celery 

This is a pretty basic experiment but it can help to show kids how plants absorb water. You just need either celery or a white flower and some colored water. Once the celery is placed in the colored water, it can help kids to visualize how plants sustain themselves.

3. Dissolve Or Not?

This experiment can help teach kids about different solutions, but it’s more about showing kids the way to create their own hypotheses. For example, having six different substances and six different solutions, questioning whether it will dissolve and why they think so. 

4. Volcano (Baking Soda)

Every kid will have fond memories of this experiment. It’s a super fun and easy science experiment that shows how bases and acids react when they are in contact with one another, and it results in a miniature volcano! 

5. The Skittles Experiment 

This is a cool way to learn about diffusion. You simply need a packet of Skittles and observe what happens when each different color coating is exposed to shallow, cold or hot water. 

6. Burn The Bill 

Don’t panic, you won’t be burning any money with this experiment . It’s an easy way to teach kids about combustion, so you can use any paper item. 

7. Dr. Seuss’ Butter Experiment

Any fans of Dr. Seuss may recognize this experiment. You simply need to put heavy whipping cream into a tight jar and observe how the fat molecules clump together and form a butter product!

8. Liquids And Layers 

Using items that you can find in your pantry, this experiment can help to show kids how liquids have different densities and how they might operate.

9. Egg Crystal Geode 

Merging Springtime and Geology together, this is a fun experiment whereby kids can make their own geodes and learn about super-saturated solutions.

10. Make Rain In A Jar 

This quick and simple experiment can help to show students how rain occurs. As we know, rain is the result of warm, humid air converging with cold air in the upper atmosphere. 

So, using a jar and a plate, you can place ice and water into a jar and show kids how rain works by making your own in a jar! 

11. The Unpoppable Balloon 

Students will be intrigued by how you can put a sharp stick through a balloon and it won’t pop! It’s a quick and simple experiment that demonstrates polymers.

12. Float Or Sink?

This experiment is pretty basic but it’s quite important to learn. It can be conducted anywhere too, but it’s best during hot weather using a lake or river. 

Create a hypothesis with multiple items and question whether or not you believe certain items will sink or float. 

13. Make Your Own Sand 

Any kid will get a kick out of making their own sand ! The experiment doesn’t need too many resources or items, but it’s something you need to ensure before you start.

14. Make Your Own Barometer 

This experiment can help show kids how air pressure has an effect on the weather. The best way to do this is to build your own barometer! 

15. Create A Solar Oven

This is a quick and easy way to show students how radiant heat works. By harnessing its power, there are many things you can do! You just have to be careful.

16. The Sticky Ice Experiment 

It’s really fun to show students how salt has an effect on water and its freezing point. You need water, salt, and some string to carry this one out!

17. An Egg In A Bottle

Using a small bottle, some matches, and an egg, you can show your students how objects may react to adaptations in air pressure.

18. Make A CD Garden 

You’re certain to have some old CD cases around. If so, you can get kids involved in making their own CD case garden and observe the ways that plants grow!

19. The Gummy Worm Dance 

When an acidic liquid is mixed with a neutral solution, it’s possible for some things to react in hilarious ways that kids will love. Place a gummy worm in a jar and mix the solutions to watch your students laugh at the results.

20. Make A Green Penny 

If you have an old penny lying around, then why not test out this experiment , which takes about three days? It’s a cool way to learn about metal and chemical reactions , though! 

21. Soap Popcorn 

This experiment needs supervision from an adult, but it’s awesome to watch. Using Charles’ law, simply place a bar of soap in a microwave and watch how it expands as it heats up. 

22. The Cabbage PH Indicator 

Students can test out the PH levels of different liquids simply by using cabbage. It’s pretty simple to perform and it’s cool to watch.

23. Can Ice Grow?

This experiment needs to be followed step by step, but it’s really interesting to observe. With some basic steps, you can get your students to observe how ice might grow and form towers.

24. Paper Cup – The Strength In Numbers 

Using several paper cups and some cardboard sheets, this is an outdoor experiment that can help to demonstrate weight distribution and how paper cups can hold body weight when in numbers.

25. Separate Pepper And Salt 

Draw from the power of static electricity via a plastic spoon and show students how easy it is for matter to divide and separate – which can be shown with salt and pepper.

26. Fireworks In A Jar

At the right time of year, you can theme this experiment using oil, water, food coloring, and a jar. It’s a super fun project to help kids understand density – and the results are pretty! 

27. Water And Oil Discovery Bottles 

Most of us will be familiar with making water and oil discovery bottles from when we were kids, and it continues to be a super fun experiment for students today. All the bright colors are an awesome sensory experience for kids.

28. Color Mixing With Coffee Filters

This experiment is more for younger students, but it’s simple and effective. Using coffee filters, you can add liquids to watch how the filters absorb them and change colors, making mixes which make new colors.

29. Create Fizzy Lemonade 

A tasty experiment for the summer, this can help teach kids how mixing base liquids with acid creates a chemical reaction – but it results in something that you can enjoy at the end! 

30. Magic Milk 

This simple experiment needs a few items; milk, dish soap, and food coloring. This is a super colorful and fun thing to do and can help show kids how molecular behavior might work, how surface tension works, and a little bit about an object’s density.

31. Walking On Eggs 

Another experiment that can show the power of weight distribution is walking on eggs. Show your students how something so fragile can withstand body weight when in large numbers.

32. Create A Hydraulic Elevator 

This experiment sounds more complex than it actually is. You just need to use some sticks and large medicine droppers. It’s a classic experiment that many STEM teachers have used in the classroom before.

33. Demonstrate Inertia 

Newton’s first law of motion can be demonstrated pretty easily, and it’s never too early or too late to show students how it works! 

34. Grow Your Gummy Bears

When it comes to students and science, what better way to teach them than using candy ? Using all areas of the major sciences, you can turn little gummy bears into big gummy bears! 

35. The Disappearing Egg Shell

Students of all ages enjoy watching this experiment , and it’s helpful to show them the ways that chemical reactions operate.

36. Coca-Cola Tooth Experiment 

This is a classic experiment that can help show students the effects of sugary drinks on their teeth. When your students are young and losing their baby teeth, ask them to bring in a tooth and show them the horrible effects in a jar! 

37. Small Tornado In A Bottle

Most of us performed this experiment when we were students, and it’s super fun to keep it going with your own students. Demonstrating centripetal force by creating a water vortex in a bottle is awesome! 

38. Make A Bag Leak-Proof

Another experiment that demonstrates polymers, you need a plastic bag, some water, a sharp pencil, and some patience – and you can show kids the seemingly impossible!

39. Make A Non-Newtonian Fluid 

There are substances out there that get firmer when pressure is applied to them, and these are known as non-Newtonian fluids. It’s really intriguing to see how fluids can behave in such ways, so your students are bound to get a kick out of this.

40. Demonstrate Capillaries

You can show kids how our capillaries function using items you can find pretty much everywhere. It’s super cool and colorful and you’re bound to excite everyone with this in the classroom.

41. Make Candy Rock 

Students, candy, and rocks – they go hand in hand! Your students will love to create their own candy rock and watch as the rock crystals grow.

42. Make The Super Bubble

You can show students how to make a better version of bubble mixture to create much larger bubbles, called superbubbles! 

43. Frozen Vegetable Oil Paintings

Here’s another classic experiment that most kids have conducted when they were in the classroom. It’s a fun way to show kids how some liquids behave when they are frozen, and as vegetable oil behaves differently – you can make awesome paintings! 

44. Make An Ice Magnifying Glass 

This experiment is pretty simple, but we like to add something more fun to it. Once you have made your ice magnifying glass, show your students how glass behaves underwater by designing a real magnifying glass (do not allow them to do this though).

Glass under water can be cut and sliced in much different ways than above the surface, so you can easily create your own glass designs to show your students in a safe way.

45. Can Eggs Float?

Finally, on our list, we have the experiment that has shown students for years how eggs can float on water if salt is added to the liquid. It’s a simple way to explain density, and it’s always a good idea to bring in the Dead Sea example.

The Dead Sea is so salty that people can simply float on its surface, but it’s also deadly because if you turn around – it’s difficult to get your head out of the salty water! 

Things To Remember

There are always things you should remember when it comes to these sorts of experiments. Some are much more obvious than others, but it’s always important to ensure we’re on the same wavelength. These include the following.

Safety 

Conduct a health and safety risk assessment before you carry out any experiment, and always be aware of any safety equipment you and your students may need to wear. Be sure to take reasonable care with all of your experiments (and best to do a trial run first!).

Reinforce Learning 

It’s all fine and good demonstrating the experiments, but you must ensure that you reinforce the student’s learning by asking questions at the end of the lesson. It’s also wise to set some theoretical homework based on their practical experiment. 

Do Your Research 

It’s of course critical that you know exactly what you are doing before you show your students, but it’s also as important to know your students. For example, if an experiment is more tailored for younger students, do not try it for older kids.  You may also like: 1st grade science project ideas .

The Bottom Line 

And that’s our comprehensive list of the easiest science experiments that you can show students in the classroom, at home, or out in the field! We hope you have enjoyed our guide and you’ve found some amazing new experiments for your students! Good luck.

Top tip: Teach your students about the most famous inventors while they work on their own science experiments.

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37 Cool Science Experiments for Kids to Do at Home

General Education

Are you looking for cool science experiments for kids at home or for class? We've got you covered! We've compiled a list of 37 of the best science experiments for kids that cover areas of science ranging from outer space to dinosaurs to chemical reactions. By doing these easy science experiments, kids will make their own blubber and see how polar bears stay warm, make a rain cloud in a jar to observe how weather changes, create a potato battery that'll really power a lightbulb, and more.

Below are 37 of the best science projects for kids to try. For each one we include a description of the experiment, which area(s) of science it teaches kids about, how difficult it is (easy/medium/hard), how messy it is (low/medium/high), and the materials you need to do the project. Note that experiments labelled "hard" are definitely still doable; they just require more materials or time than most of these other science experiments for kids.

#1: Insect Hotels

• Teaches Kids About: Zoology
• Difficulty Level: Medium
• Messiness Level: Medium

Insect hotels can be as simple (just a few sticks wrapped in a bundle) or as elaborate as you'd like, and they're a great way for kids to get creative making the hotel and then get rewarded by seeing who has moved into the home they built. After creating a hotel with hiding places for bugs, place it outside (near a garden is often a good spot), wait a few days, then check it to see who has occupied the "rooms." You can also use a bug ID book or app to try and identify the visitors.

• Materials Needed
• Shadow box or other box with multiple compartments
• Hot glue gun with glue
• Sticks, bark, small rocks, dried leaves, bits of yarn/wool, etc.

#2: DIY Lava Lamp

• Teaches Kids About: Chemical reactions
• Difficulty Level: Easy

In this quick and fun science experiment, kids will mix water, oil, food coloring, and antacid tablets to create their own (temporary) lava lamp . Oil and water don't mix easily, and the antacid tablets will cause the oil to form little globules that are dyed by the food coloring. Just add the ingredients together and you'll end up with a homemade lava lamp!

• Vegetable oil
• Food coloring
• Antacid tablets

#3: Magnetic Slime

• Teaches Kids About: Magnets
• Messiness Level: High (The slime is black and will slightly dye your fingers when you play with it, but it washes off easily.)

A step up from silly putty and Play-Doh, magnetic slime is fun to play with but also teaches kids about magnets and how they attract and repel each other. Some of the ingredients you aren't likely to have around the house, but they can all be purchased online. After mixing the ingredients together, you can use the neodymium magnet (regular magnets won't be strong enough) to make the magnetic slime move without touching it!

• Liquid starch
• Adhesive glue
• Iron oxide powder
• Neodymium (rare earth) magnet

#4: Baking Soda Volcanoes

• Teaches Kids About: Chemical reactions, earth science
• Difficulty Level: Easy-medium
• Messiness Level: High

Baking soda volcanoes are one of the classic science projects for kids, and they're also one of the most popular. It's hard to top the excitement of a volcano erupting inside your home. This experiment can also be as simple or in-depth as you like. For the eruption, all you need is baking soda and vinegar (dishwashing detergent adds some extra power to the eruption), but you can make the "volcano" as elaborate and lifelike as you wish.

• Baking soda
• Dishwashing detergent
• Large mason jar or soda bottle
• Playdough or aluminum foil to make the "volcano"
• Additional items to place around the volcano (optional)
• Food coloring (optional)

#5: Tornado in a Jar

• Teaches Kids About: Weather
• Messiness Level: Low

This is one of the quick and easy and science experiments for kids to teach them about weather. It only takes about five minutes and a few materials to set up, but once you have it ready you and your kids can create your own miniature tornado whose vortex you can see and the strength of which you can change depending on how quickly you swirl the jar.

• Glitter (optional)

#6: Colored Celery Experiment

• Teaches Kids About: Plants

This celery science experiment is another classic science experiment that parents and teachers like because it's easy to do and gives kids a great visual understanding of how transpiration works and how plants get water and nutrients. Just place celery stalks in cups of colored water, wait at least a day, and you'll see the celery leaves take on the color of the water. This happens because celery stalks (like other plants) contain small capillaries that they use to transport water and nutrients throughout the plant.

• Celery stalks (can also use white flowers or pale-colored cabbage)

#7: Rain Cloud in a Jar

This experiment teaches kids about weather and lets them learn how clouds form by making their own rain cloud . This is definitely a science project that requires adult supervision since it uses boiling water as one of the ingredients, but once you pour the water into a glass jar, the experiment is fast and easy, and you'll be rewarded with a little cloud forming in the jar due to condensation.

• Glass jar with a lid
• Boiling water
• Aerosol hairspray

#8: Edible Rock Candy

• Teaches Kids About: Crystal formation

It takes about a week for the crystals of this rock candy experiment to form, but once they have you'll be able to eat the results! After creating a sugar solution, you'll fill jars with it and dangle strings in them that'll slowly become covered with the crystals. This experiment involves heating and pouring boiling water, so adult supervision is necessary, once that step is complete, even very young kids will be excited to watch crystals slowly form.

• Large saucepan
• Clothespins
• String or small skewers
• Candy flavoring (optional)

#9: Water Xylophone

• Teaches Kids About: Sound waves

With just some basic materials you can create your own musical instrument to teach kids about sound waves. In this water xylophone experiment , you'll fill glass jars with varying levels of water. Once they're all lined up, kids can hit the sides with wooden sticks and see how the itch differs depending on how much water is in the jar (more water=lower pitch, less water=higher pitch). This is because sound waves travel differently depending on how full the jars are with water.

• Wooden sticks/skewers

#10: Blood Model in a Jar

• Teaches Kids About: Human biology

This blood model experiment is a great way to get kids to visual what their blood looks like and how complicated it really is. Each ingredient represents a different component of blood (plasma, platelets, red blood cells, etc.), so you just add a certain amount of each to the jar, swirl it around a bit, and you have a model of what your blood looks like.

• Empty jar or bottle
• Red cinnamon candies
• Marshmallows or dry white lima beans
• White sprinkles

#11: Potato Battery

• Teaches Kids About: Electricity
• Difficulty Level: Hard

Did you know that a simple potato can produce enough energy to keep a light bulb lit for over a month? You can create a simple potato battery to show kids. There are kits that provide all the necessary materials and how to set it up, but if you don't purchase one of these it can be a bit trickier to gather everything you need and assemble it correctly. Once it's set though, you'll have your own farm grown battery!

• Fresh potato
• Galvanized nail
• Copper coin

#12: Homemade Pulley

• Teaches Kids About: Simple machines

This science activity requires some materials you may not already have, but once you've gotten them, the homemade pulley takes only a few minutes to set up, and you can leave the pulley up for your kids to play with all year round. This pulley is best set up outside, but can also be done indoors.

• Clothesline
• 2 clothesline pulleys

#13: Light Refraction

• Teaches Kids About: Light

This light refraction experiment takes only a few minutes to set up and uses basic materials, but it's a great way to show kids how light travels. You'll draw two arrows on a sticky note, stick it to the wall, then fill a clear water bottle with water. As you move the water bottle in front of the arrows, the arrows will appear to change the direction they're pointing. This is because of the refraction that occurs when light passes through materials like water and plastic.

• Sticky note
• Transparent water bottle

#14: Nature Journaling

• Teaches Kids About: Ecology, scientific observation

A nature journal is a great way to encourage kids to be creative and really pay attention to what's going on around them. All you need is a blank journal (you can buy one or make your own) along with something to write with. Then just go outside and encourage your children to write or draw what they notice. This could include descriptions of animals they see, tracings of leaves, a drawing of a beautiful flower, etc. Encourage your kids to ask questions about what they observe (Why do birds need to build nests? Why is this flower so brightly colored?) and explain to them that scientists collect research by doing exactly what they're doing now.

• Blank journal or notebook
• Pens/pencils/crayons/markers
• Tape or glue for adding items to the journal

#15: DIY Solar Oven

• Teaches Kids About: Solar energy

This homemade solar oven definitely requires some adult help to set up, but after it's ready you'll have your own mini oven that uses energy from the sun to make s'mores or melt cheese on pizza. While the food is cooking, you can explain to kids how the oven uses the sun's rays to heat the food.

• Aluminum foil
• Knife or box cutter
• Permanent marker
• Plastic cling wrap
• Black construction paper

#16: Animal Blubber Simulation

• Teaches Kids About: Ecology, zoology

If your kids are curious about how animals like polar bears and seals stay warm in polar climates, you can go beyond just explaining it to them; you can actually have them make some of their own blubber and test it out. After you've filled up a large bowl with ice water and let it sit for a few minutes to get really cold, have your kids dip a bare hand in and see how many seconds they can last before their hand gets too cold. Next, coat one of their fingers in shortening and repeat the experiment. Your child will notice that, with the shortening acting like a protective layer of blubber, they don't feel the cold water nearly as much.

• Bowl of ice water

#17: Static Electricity Butterfly

This experiment is a great way for young kids to learn about static electricity, and it's more fun and visual than just having them rub balloons against their heads. First you'll create a butterfly, using thick paper (such as cardstock) for the body and tissue paper for the wings. Then, blow up the balloon, have the kids rub it against their head for a few seconds, then move the balloon to just above the butterfly's wings. The wings will move towards the balloon due to static electricity, and it'll look like the butterfly is flying.

• Tissue paper
• Thick paper
• Glue stick/glue

#18: Edible Double Helix

• Teaches Kids About: Genetics

If your kids are learning about genetics, you can do this edible double helix craft to show them how DNA is formed, what its different parts are, and what it looks like. The licorice will form the sides or backbone of the DNA and each color of marshmallow will represent one of the four chemical bases. Kids will be able to see that only certain chemical bases pair with each other.

• 2 pieces of licorice
• 12 toothpicks
• Small marshmallows in 4 colors (9 of each color)
• 5 paperclips

#19: Leak-Proof Bag

• Teaches Kids About: Molecules, plastics

This is an easy experiment that'll appeal to kids of a variety of ages. Just take a zip-lock bag, fill it about ⅔ of the way with water, and close the top. Next, poke a few sharp objects (like bamboo skewers or sharp pencils) through one end and out the other. At this point you may want to dangle the bag above your child's head, but no need to worry about spills because the bag won't leak? Why not? It's because the plastic used to make zip-lock bags is made of polymers, or long chains of molecules that'll quickly join back together when they're forced apart.

• Zip-lock bags
• Objects with sharp ends (pencils, bamboo skewers, etc.)

#20: How Do Leaves Breathe?

• Teaches Kids About: Plant science

It takes a few hours to see the results of this leaf experiment , but it couldn't be easier to set up, and kids will love to see a leaf actually "breathing." Just get a large-ish leaf, place it in a bowl (glass works best so you can see everything) filled with water, place a small rock on the leaf to weigh it down, and leave it somewhere sunny. Come back in a few hours and you'll see little bubbles in the water created when the leaf releases the oxygen it created during photosynthesis.

• Large bowl (preferably glass)
• Magnifying glass (optional)

#21: Popsicle Stick Catapults

Kids will love shooting pom poms out of these homemade popsicle stick catapults . After assembling the catapults out of popsicle sticks, rubber bands, and plastic spoons, they're ready to launch pom poms or other lightweight objects. To teach kids about simple machines, you can ask them about how they think the catapults work, what they should do to make the pom poms go a farther/shorter distance, and how the catapult could be made more powerful.

• Popsicle sticks
• Rubber bands
• Plastic spoons
• Paint (optional)

#22: Elephant Toothpaste

You won't want to do this experiment near anything that's difficult to clean (outside may be best), but kids will love seeing this " elephant toothpaste " crazily overflowing the bottle and oozing everywhere. Pour the hydrogen peroxide, food coloring, and dishwashing soap into the bottle, and in the cup mix the yeast packet with some warm water for about 30 seconds. Then, add the yeast mixture to the bottle, stand back, and watch the solution become a massive foamy mixture that pours out of the bottle! The "toothpaste" is formed when the yeast removed the oxygen bubbles from the hydrogen peroxide which created foam. This is an exothermic reaction, and it creates heat as well as foam (you can have kids notice that the bottle became warm as the reaction occurred).

• Clean 16-oz soda bottle
• 6% solution of hydrogen peroxide
• 1 packet of dry yeast
• Dishwashing soap

#23: How Do Penguins Stay Dry?

Penguins, and many other birds, have special oil-producing glands that coat their feathers with a protective layer that causes water to slide right off them, keeping them warm and dry. You can demonstrate this to kids with this penguin craft by having them color a picture of a penguin with crayons, then spraying the picture with water. The wax from the crayons will have created a protective layer like the oil actual birds coat themselves with, and the paper won't absorb the water.

• Penguin image (included in link)
• Spray bottle
• Blue food coloring (optional)

#24: Rock Weathering Experiment

• Teaches Kids About: Geology

This mechanical weathering experiment teaches kids why and how rocks break down or erode. Take two pieces of clay, form them into balls, and wrap them in plastic wrap. Then, leave one out while placing the other in the freezer overnight. The next day, unwrap and compare them. You can repeat freezing the one piece of clay every night for several days to see how much more cracked and weathered it gets than the piece of clay that wasn't frozen. It may even begin to crumble. This weathering also happens to rocks when they are subjected to extreme temperatures, and it's one of the causes of erosion.

• Plastic wrap

#25: Saltwater Density

• Teaches Kids About: Water density

For this saltwater density experiment , you'll fill four clear glasses with water, then add salt to one glass, sugar to one glass, and baking soda to one glass, leaving one glass with just water. Then, float small plastic pieces or grapes in each of the glasses and observe whether they float or not. Saltwater is denser than freshwater, which means some objects may float in saltwater that would sink in freshwater. You can use this experiment to teach kids about the ocean and other bodies of saltwater, such as the Dead Sea, which is so salty people can easily float on top of it.

• Four clear glasses
• Lightweight plastic objects or small grapes

#26: Starburst Rock Cycle

With just a package of Starbursts and a few other materials, you can create models of each of the three rock types: igneous, sedimentary, and metamorphic. Sedimentary "rocks" will be created by pressing thin layers of Starbursts together, metamorphic by heating and pressing Starbursts, and igneous by applying high levels of heat to the Starbursts. Kids will learn how different types of rocks are forms and how the three rock types look different from each other.

• Toaster oven

#27: Inertia Wagon Experiment

• Teaches Kids About: Inertia

This simple experiment teaches kids about inertia (as well as the importance of seatbelts!). Take a small wagon, fill it with a tall stack of books, then have one of your children pull it around then stop abruptly. They won't be able to suddenly stop the wagon without the stack of books falling. You can have the kids predict which direction they think the books will fall and explain that this happens because of inertia, or Newton's first law.

• Stack of books

#28: Dinosaur Tracks

• Teaches Kids About: Paleontology

How are some dinosaur tracks still visible millions of years later? By mixing together several ingredients, you'll get a claylike mixture you can press your hands/feet or dinosaur models into to make dinosaur track imprints . The mixture will harden and the imprints will remain, showing kids how dinosaur (and early human) tracks can stay in rock for such a long period of time.

• Used coffee grounds
• Wooden spoon
• Rolling pin

#29: Sidewalk Constellations

• Teaches Kids About: Astronomy

If you do this sidewalk constellation craft , you'll be able to see the Big Dipper and Orion's Belt in the daylight. On the sidewalk, have kids draw the lines of constellations (using constellation diagrams for guidance) and place stones where the stars are. You can then look at astronomy charts to see where the constellations they drew will be in the sky.

• Sidewalk chalk
• Small stones
• Diagrams of constellations

#30: Lung Model

By building a lung model , you can teach kids about respiration and how their lungs work. After cutting off the bottom of a plastic bottle, you'll stretch a balloon around the opened end and insert another balloon through the mouth of the bottle. You'll then push a straw through the neck of the bottle and secure it with a rubber band and play dough. By blowing into the straw, the balloons will inflate then deflate, similar to how our lungs work.

• Plastic bottle
• Rubber band

#31: Homemade Dinosaur Bones

By mixing just flour, salt, and water, you'll create a basic salt dough that'll harden when baked. You can use this dough to make homemade dinosaur bones and teach kids about paleontology. You can use books or diagrams to learn how different dinosaur bones were shaped, and you can even bury the bones in a sandpit or something similar and then excavate them the way real paleontologists do.

• Images of dinosaur bones

#32: Clay and Toothpick Molecules

There are many variations on homemade molecule science crafts . This one uses clay and toothpicks, although gumdrops or even small pieces of fruit like grapes can be used in place of clay. Roll the clay into balls and use molecule diagrams to attach the clay to toothpicks in the shape of the molecules. Kids can make numerous types of molecules and learn how atoms bond together to form molecules.

• Clay or gumdrops (in four colors)
• Diagrams of molecules

#33: Articulated Hand Model

By creating an articulated hand model , you can teach kids about bones, joints, and how our hands are able to move in many ways and accomplish so many different tasks. After creating a hand out of thin foam, kids will cut straws to represent the different bones in the hand and glue them to the fingers of the hand models. You'll then thread yarn (which represents tendons) through the straws, stabilize the model with a chopstick or other small stick, and end up with a hand model that moves and bends the way actual human hands do.

• Straws (paper work best)
• Twine or yarn

#34: Solar Energy Experiment

• Teaches Kids About: Solar energy, light rays

This solar energy science experiment will teach kids about solar energy and how different colors absorb different amounts of energy. In a sunny spot outside, place six colored pieces of paper next to each other, and place an ice cube in the middle of each paper. Then, observe how quickly each of the ice cubes melt. The ice cube on the black piece of paper will melt fastest since black absorbs the most light (all the light ray colors), while the ice cube on the white paper will melt slowest since white absorbs the least light (it instead reflects light). You can then explain why certain colors look the way they do. (Colors besides black and white absorb all light except for the one ray color they reflect; this is the color they appear to us.)

• 6 squares of differently colored paper/cardstock (must include black paper and white paper)

#35: How to Make Lightning

• Teaches Kids About: Electricity, weather

You don't need a storm to see lightning; you can actually create your own lightning at home . For younger kids this experiment requires adult help and supervision. You'll stick a thumbtack through the bottom of an aluminum tray, then stick the pencil eraser to the pushpin. You'll then rub the piece of wool over the aluminum tray, and then set the tray on the Styrofoam, where it'll create a small spark/tiny bolt of lightning!

• Pencil with eraser
• Aluminum tray or pie tin
• Styrofoam tray

#36: Tie-Dyed Milk

• Teaches Kids About: Surface tension

For this magic milk experiment , partly fill a shallow dish with milk, then add a one drop of each food coloring color to different parts of the milk. The food coloring will mostly stay where you placed it. Next, carefully add one drop of dish soap to the middle of the milk. It'll cause the food coloring to stream through the milk and away from the dish soap. This is because the dish soap breaks up the surface tension of the milk by dissolving the milk's fat molecules.

• Shallow dish
• Milk (high-fat works best)

#37: How Do Stalactites Form?

Have you ever gone into a cave and seen huge stalactites hanging from the top of the cave? Stalactites are formed by dripping water. The water is filled with particles which slowly accumulate and harden over the years, forming stalactites. You can recreate that process with this stalactite experiment . By mixing a baking soda solution, dipping a piece of wool yarn in the jar and running it to another jar, you'll be able to observe baking soda particles forming and hardening along the yarn, similar to how stalactites grow.

• Safety pins
• 2 glass jars

Summary: Cool Science Experiments for Kids

Any one of these simple science experiments for kids can get children learning and excited about science. You can choose a science experiment based on your child's specific interest or what they're currently learning about, or you can do an experiment on an entirely new topic to expand their learning and teach them about a new area of science. From easy science experiments for kids to the more challenging ones, these will all help kids have fun and learn more about science.

What's Next?

Are you also interested in pipe cleaner crafts for kids? We have a guide to some of the best pipe cleaner crafts to try!

Looking for multiple different slime recipes? We tell you how to make slimes without borax and without glue as well as how to craft the ultimate super slime .

Want to learn more about clouds? Learn how to identify every cloud in the sky with our guide to the 10 types of clouds .

Want to know the fastest and easiest ways to convert between Fahrenheit and Celsius? We've got you covered! Check out our guide to the best ways to convert Celsius to Fahrenheit (or vice versa) .

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The Best 8th Grade Science Fair Projects

Oscar Pedroso October 1, 2020 STEM Projects

8th Grade Science Fair Projects – Don’t make it harder than it has to be!

It’s happened. Your eighth-grader brought home an assignment that can strike fear into the hearts of parents everywhere.  It’s true. The science fair is upon us.  The teacher has given them a lengthy rubric outlining all the requirements and presentation methods their assignment must adhere to.  The scope of the project is enough to make your head spin if this isn’t something you’ve already done with them in 7th grade.  The hardest part for most middle-school students is selecting age-appropriate science experiments that can be completed independently.

Hark! Fear not brave parents, for choosing an 8th-grade science project doesn’t need to be scary or overly complicated. Your rookie scientist just needs to find a question (hypothesis) that they really want to answer. Being interested in the outcome (conclusion) of their own project is an important part of getting them to do the work willingly rather than begrudgingly.

Check out some of the best 8th-grade science fair projects we’ve found to get your budding researcher’s wheels moving! (And don’t forget your trusty lab notebook to record methods and observations!):

1. How Does Stress Affect Body Temperature?

• Thermometer

How it’s done:

This project could illustrate why your student literally sweats that math test every week. Have your volunteers perform a timed math test or a series of difficult puzzles.  Take their temperature before and immediately after the high-stress activity, record, and compare! Did your volunteers stay cool under pressure? How  did stress affect their temperature regulation ?

2. Which Beverages Release the Most Gas?

• Baking Soda
• Heating Pad
• Bottles with narrow necks

When is a balloon actually a belch?  In this project of course!  Pour equal amounts of different beverages into individual bottles and add vinegar (to act like our stomach acids).  Placing the bottles on a heating pad will speed up this “mock digestion”.  One of the properties of gas states that gases expand to fill their container.  Expanding gases will inflate the balloons that have been stretched over the opening of the bottle, visually illustrating  which beverage releases the most gas !

3. What Effects Do Carbonated Drinks Have on Meat?

• 3 types of meat (i.e. steak, chicken, salmon)
• 3 containers
• 6 cans of carbonated soda

Did you know soda has a similar pH level to the human stomach? So soda should be able to digest meat as our stomachs do, right?  To test this hypothesis, place each different meat into a container and cover it completely with soda.  Observe the meat over several days.  Record observations.  Students can even weigh the meat before/after the experiment to include quantitative data along with their visual observations. Read more about why  this science project  works the way it does!

4. Create an Optical Illusion With an Infinity Mirror

• Cardboard box
• Mirror (same shape as the container)
• Mirrored window cling
• LED Christmas lights
• A sheet of plexiglass or acrylic
• Cutting tool

Mirror, mirror on the wall – Are you a mirror or a never-ending hall? Your student will create an optical illusion with some inexpensive and basic supplies.  Use adhesive to secure the mirror to the floor of the box.  LED bulbs are inserted through holes in the walls of the box.  The visual trickery lies in the mirrored window cling viewing window.  Check out this  optical illusion  in greater detail!

5. Can We Distill Saltwater With Solar Power?

• 2 plastic containers
• 25 mL graduated cylinder
• 800 mL beaker
• Modeling Clay
• 2 5mL funnels
• Flexible straws
• Steel washers
• Rubber bands
• Plastic Wrap

When ocean water evaporates, the salt is left behind. Collect this desalinated water with a simple DIY contraption. Containers of saltwater placed in the sunshine will begin to evaporate.  Cling wrap will cover the containers to collect evaporation. Use the heavy washers on top of the cling wrap to guide droplets of evaporated water down a gentle slope into the funnel.  The funnel and straw will empty into a waiting cup.  Cover the cup so no freshwater evaporates!  Check out a detailed assembly of the  water distiller !

6. Are Our Fingerprints Inherited?

• Paper Towel
• Tracing paper
• White paper
• Magnifying glass
• Volunteers – 15 pairs of siblings, 15 pairs of unrelated individuals

Volunteers can touch tracing paper that’s been heavily scribbled on with pencil.  Place the index finger onto the sticky side of a piece of tape. That piece of tape now holds a clear fingerprint!  Using the magnifying glass, compare the fingerprints of siblings and non-related volunteers and record. Are they the same pattern? Read up on  fingerprints  to feel like a real detective!

7. Owl Pellet Fossil Reconstruction

• Owl Pellet (available online)
• Clean paper
• Tweezers, needles, and/or wooden probes to deconstruct pellet
• Owl Pellet Bone Chart
• Small papers to separate bones and waste between

Owl pellets (think cat hairball) hold evidence of an owl’s most recent meal. Gently use tweezers, needles, or wooden probes to separate the owl pellet into four quarters.  Carefully pick the quarters apart, and set aside the animal bones on a separate sheet of paper. Think of it like a treasure hunt – a really gross treasure hunt.  Use a  bone chart  to reconstruct and identify the animal found in the pellet.

8. How Does Color Affect Heating? A Look at Light Absorption

• 6-8 identical glass jars
• 6-8 pieces of colored construction paper
• Timer or clock
• Drill for making holes in jar lids

Wrap each jar with construction paper.  Fill each jar with equal amounts of room temperature water.  Take an initial temperature reading, and then another after each jar has been sitting beneath the heat source for an amount of time (i.e. – 30 minutes).  Record your observations, and decide if there is a particular color that absorbed more light/heat! Read about the  science behind this project  in depth.

9. Homemade Hand Warmers

• Jelly crystals
• Iron Fillings
• Calcium Chloride
• Zipper-Lock Bag

You may find yourself repeating  this project  for a cold night of trick-or-treating or winter caroling.  Fill the small cup with water and ¼ tsp. of the jelly crystals.  Allow time for water absorption.  Add iron fillings and Calcium Chloride to the bag.  Manipulate the bag to mix ingredients.  Feel the heat!  You can add numerical data to this experiment by taking the temperature of the polymer beads throughout the experiment.

10. What Makes a Diaper Absorb Moisture?

• New baby diaper
• Zipper-lock bag
• Small plastic cup

It’s probably been a while since you had diapers in your house if you’re helping your 8th grader with homework.  You can use scissors to open the diaper.  You’ll collect polymer powder from the diaper’s stuffing into a cup.  Pour water over and watch as the polymer gels.  You can increase the research level of  this project  by comparing diaper brands and measuring the water quantities each diaper can hold.

11. What Door Handle in the School Holds the Most Bacteria?

• Bacteria growing kit (Petri dishes with agar)
• Sterile cotton swabs

Try to talk your kid out of wearing gloves to school for the rest of the year after completing  this project .  Using sterile swabs, sample 5 dirty doorknobs at the middle school. Rub the swab in the petri dish, cover, label, and date. Get ready to be grossed out.  Observe the Petri dishes over the next few days and keep detailed records of the growth.  Which door handle hid the most bacteria?

12. Why Do We Need Tendons? Engineering a Bionic Hand

• ¾ inch dowel rod
• 1-inch X 4-inch pine plank
• 5 bags of small screw eyes (eyelets)
• 2 rolls of nylon string
• Wide rubber bands
• 1 open eyelet
• White spray paint
• ¾ inch sheetrock screws (x2)
• Basic power tools used under close adult supervision (grinder, jig saw drill press)

This experiment will make your child feel like Tony Stark, and teach them a bit about human anatomy.  You’ll cut and grind dowel rods to make mock “bone segments”.  Eyelets are inserted into bone segments where “tendons” and “ligaments” (string) will attach.  Spray paint all the bone segments white, for an authentic skeleton look.  The pine plank makes up the palm/wrist area.  Assembling this bionic hand  will earn you a high five from your teacher.

13. Which Mouthwash is Most Effective at Killing Bacteria?

• Multiple brands of mouthwash
• Petri dishes with agar for growing bacteria
• Sterile swabs

We predict your child will better about dental hygiene after this science project.   Swab the inside of your student’s mouth a couple of hours after eating, and apply the sample to the petri dish. Use the mouthwash according to the label, rinse with water, then take a second sample with a new swab.  Be sure to label each dish carefully. Repeat for each mouthwash type and compare bacterial growth. Try not to be grossed out, and determine  which brand of mouthwash works the best!

14. Can Caffeine Make Us Faster Typists?

• Caffeinated beverage
• A decaffeinated beverage (soda or coffee)
• Word Processing Program
• Test Subjects

Volunteers will type: “The quick brown fox jumped over the lazy dog.” as many times as possible in one minute after ingesting a non-caffeinated beverage. Repeat the timed typing exercise after a decaffeinated beverage. Keep your volunteers in the dark about which beverage is caffeinated!

Editor’s note:  Let us know how  this project  works out – We might need to install a new coffee machine in the office for faster blog posting!

15. Can we see sound?

• Uncooked rice
• Plastic wrap
• Sound source (Speaker, Pots and Pans, etc)

When your teenager blasts their music, it can feel like they’re banging on your brain!  Show them  how those sound waves look .  This project lets us visually see the movement of grains of rice created by sound waves from loud noise nearby.  You can use pots and pans or a stereo speaker as a sound source.

16. Investigating the effects of external stimuli on carnivorous plant digestion

• 3 Dionaea muscipula of similar size
• Small crickets (available at any pet store)
• 3 temperature controlled locations
• Thermometers

Plants straight out of a science fiction movie  are enough to make any student interested in this project!  You’ll look at external stimuli effects on the digestion time of the Venus flytrap.  Plants are placed in locations where temperatures can be monitored and controlled.  “Feed” the plant a cricket.  After the plant snaps shut, monitor how many days each plant spends digesting the insects.  Do warmer temperatures speed up digestion?  Make sure your student doesn’t try to feed their little brother to the plant.

17. Determining the Iodide content of different types of salt.

• Plastic cups
• 100mL graduated cylinder
• Distilled water
• Laundry starch solution
• Iodine antiseptic solution
• Medicine dropper
• 5 types of salt
• Hydrogen peroxide solution

Tell your eighth grader there’s no reason for them to be ‘salty’ about a little hard work.   This project  is inexpensive and has a short observation.  First, create a solution of distilled water, laundry starch, and iodine.  Stir and set aside.  Mix salt and distilled water and stir. Add 15mL of vinegar, then 15 mL of hydrogen peroxide.  Add 2.5 mL of the starch solution you set aside. Repeat these steps with each salt. What colors are you seeing?

18. What material blocks UV light most efficiently?

• UV reactive beads (available at most craft stores or online)
• Ultraviolet lightbulb (or a sunny day)
• Sunglasses, UV protecting clothing,sunglasses, sunblock, umbrella

This project will have your teenager arguing a little less about wearing sunblock on the next family vacation.  UV reactive beads change from white to vibrant colors when exposed to UV light.  You can coat the beads with sunblock, place them under sunglasses or UV protectant clothing, and compare the color changes.  You can compare sunscreen brands or SPF levels with this project.  Check out  these UV sensitive beads  in action.

19. How much electromagnetic radiation is emitted during cell phone use?

• Working cell phone
• Measuring tape
• Radio frequency meter

Is your teen obsessed with their cell phone?  This experiment  may make them hesitate to send that next text!  Use the radio frequency meter to test the electromagnetic radiation power emitted from all sides of the phone when a call is coming in, as well as when a text message is coming in.  Record the data, and analyze when complete. Does the amount of power differ when calling or texting? Does it decrease with distance?

20. What makes ice melt fastest?

• Ice cubes – same shape and size
• Glass bowls
• Calcium chloride (available at local hardware stores)

Is your science fair student old enough to shovel the walk this winter?  They could use this experiment to go the extra mile in de-icing the walk to the mailbox. Place the same number of ice cubes into separate bowls.  Apply each melting material to the ice.  Observe the melting ice.  Which bowl melts first? Record your results in your lab notebook.   Repeat the experiment  several times for accurate results.

21. Engineering earthquake-safe skyscrapers – Which design is the most stable

• Lego bricks
• 10X10 lego base plate
• Rubber balls
• Smartphone and Google’s free science journal app (It has an accelerometer feature.)

Are you an architect?  See if your structure designs can withstand the seismic activity of your shake-table.  Sandwiching four rubber balls between two sheets of plexiglass with rubber bands forms the base of a shake table that acts like an earthquake. Test the structural integrity of lego skyscrapers of different sizes and shapes.   This project  utilizes a cool (and free) Google feature called the “Science Journal App”.

22. Can you extract and store your own DNA?

• Isopropyl Alcohol (95% concentration) chilled in the freezer
• Liquid dish soap
• Wooden skewer

Sparking an interest in forensic pathology could start with this  crazy cool project .  First, create a saline solution with distilled water and salt.  Swish it around in your mouth for thirty seconds.  Spit it back into the paper cup and pour a bit into the test tube.  You’ll add a couple drops of liquid dish soap, some isopropyl alcohol, and voila! A milky white thread of DNA appears suspended in the test tube, ready to be wound around a wooden skewer.  You can freeze it in a vial for indefinite preservation!

23. Which soil type is most fertile for seed growth?

• 4-6 different soil types
• Easy-to-grow-seeds like beans
• Small pots or jars
• Paper towels
• Plastic bag

This project is simple and inexpensive  but may take a few weeks to track.  Start seeds in a ziplock bag between layers of damp paper towels.  Transfer seeds carefully to jars of soil.  Be sure to water them equally, and place them in a location where they have access to even amounts of sunlight.  Track and record plant height and appearance over several weeks and compare.

24. Create your own pH level test strips.

• Food processor
• Red cabbage
• Pot and burner
• Isopropyl Alcohol
• Coffee Filters

Creating their own testing supplies  ups your scientist from rookie to novice! Add chopped red cabbage and boiling water to a food processor.  Give it a good whir, and then strain the mixture.  In a bowl, combine cabbage mixture and alcohol.  Dip the coffee filters into the solution and soak them.  Remove them to dry.  Cut dry filters into strips and store in a dry place for use in awesome future science projects!

25. Can simple plants protect landscapes from soil erosion?

• 6 empty 2-liter bottles
• 1 piece of plywood
• Plant seedlings

This project  shows your child how important vegetation is to keep the shape of our landscapes.  This is a great experiment if heavy rains are a part of your everyday landscape.  Create three different soil situations inside the two liters.  Pouring water through the two liters and into a waiting catch basin shows us how much soil erodes with water/rain, and how plants offer some protection from erosion.

26. Do breath mints actually cool your mouth?

• Strong breath mints
• 250 mL beaker
• Bottled water

The cool, minty feeling of a breath mint can’t just be an illusion, right?   Test the theory !  Add breath mints to room temperature water.  Stir gently for ten seconds.  Take the temperature of the water every 30 seconds for four minutes.  Record and compare the temperatures.  Is it really cooling your mouth?  You could offer the judges at the science fair a breath mint during your cool science presentation!

27. What is leaf chromatography?

• Soft, fresh, green leaves (spinach will work)
• Food processor (or mortar and pestle)

You’ll be amazed at the different colored pigments hiding in a green leaf.  Grind your green leaves into a pulp.  Add some isopropyl alcohol to cover the pulp.  Dip the coffee filter strip in until just the end touches the liquid.  As colors climb the coffee filter, they’ll separate.  Wait until the liquid has climbed to the top, then remove.  You can analyze and even identify the types of pigments on the strip such as  chlorophyll, carotenoids, and xanthophylls .

28. Which plants can resist the poison of a Black Walnut Tree?

• Radish seeds
• Young tomato plants
• Black Walnut hulls
• Measuring cup
• Plastic storage containers
• Cooking pot
• Potting soil

It’s a little known fact that Black Walnut Trees produce a substance known as “juglone” that is toxic to surrounding vegetation through  a process called allelopathy .  It’s a pretty dark defense mechanism.  By boiling the black walnut hulls, you can create a juglone contaminated water source and observe its effects on other plants.  You may have a botanist on your hands by the time it’s over!

29. Can a parabola improve wireless signal for at-home learning?

• A 20 x 15 cm piece of corrugated cardboard
• 20 x 25 cm piece of thin cardboard
• Aluminum foil
• Metric ruler
• Poster board
• Wireless Router
• A program that analyzes the strength of your wireless signal

This project can be helpful for students participating in virtual learning on a weak wireless signal.  Download  Sciencebuddies.org’s Parabolic Reflector Template  to begin this project.  Print and cut! This template will help you create a concave, aluminum foil covered parabolic reflector.  The reflector, when placed on the antennae of a wireless router, can be adjusted to increase or decrease signal strength. Perhaps  this project will help your family share the internet .

30. Is the pH level of rainwater in urban areas more acidic than in rural areas?

• pH testing strips (full range)

Humankind’s impact on our world is not always visible, but this has the makings of  a powerful pollution project .  You may be able to use Project #25 on this list as a partner project. Collect rainwater in an area near a busy urban freeway.  Collect rainwater in a suburban area.  Collect rainwater in a rural area.  Test the pH level of multiple samples and compare.  What do the pH levels say about possible pollution in those areas?

What’s The Big Deal With Science Projects Anyway?

Every amazing discovery in our life was made by a researcher who did a science project.  Computer programs, apps, vaccines, and medicine are all products of scientists’ project results.  Make sure your budding researcher knows STEM education is the future.   Learn why STEM Education is our world’s most important asset.  And don’t forget the eye protection!

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60 Easy Science Experiments for Kids

May 31, 2024

What makes clouds rain? Why do crayons burn? Why is it easier to float in salt water? Science experiments for kids are fun, but they’re also a hands-on way to learn and discover our world’s many mysteries. Future chemistry majors, engineers, and PhDs need to start somewhere, and at-home experiments are a perfect way for kids to begin applying their natural curiosity to STEAM subjects. Ready to spark your young scientist in the making? We’ve got 60 easy science experiments for kids of all ages. In this article, we’ll cover:

• Easy Science Experiments for Kids—Kindergarten-5th Grade Experiments
• Easy Science Experiments for Kids—6th-8th Grade Experiments
• Science Experiments for Kids—More Resources

60 Easy Science Experiments for Kids—Kindergarten-5th Grade Experiments

1) make a bouncy egg.

If you’ve got an egg and a couple of days, you can make a bouncy egg. Yes, you heard us right: a bouncy egg. A super simple chemistry activity that’s sure to amaze, all you need for this experiment is an uncooked egg, food coloring, and vinegar.

• Learn more: Bouncy Egg

2) Blow Giant Bubbles

A science experiment that gets kids outdoors, a soapy concoction lets you blow bubbles so big you could stand inside them. This experiment requires a few household chemicals, sticks, and string.

• Learn more: Giant Bubbles

3) Grow an Avocado Tree

One of the easiest science experiments for kids, all you need to start your own avocado tree is an avocado pit, a jar, some toothpicks, and water. With a little time and sunlight, your plant will sprout roots.

• Learn more: Avocado Tree

4) Homemade Fly Trap

Put that fly swatter away! This experiment teaches kids about zoology and catches pesky home invaders at the same time. Kids test variables by making fly traps with a variety of different baits (aka honey, maple syrup, etc.) to see which best attracts the flies.

• Learn more: Homemade Fly Trap

5) DIY Puffy Slime

An ooey gooey good time for kids, this experiment uses glue, glitter, and a few other safe chemicals to make puffy slime.

• Learn more: Puffy Slime

Easy Science Experiments for Kids (Continued)

6) skittles rainbow experiment.

To teach kids about diffusion, all you need is a bag of Skittles and warm water. As the Skittles melt into the water, they’ll make a rainbow—a beautiful and tasty visual illustration of this foundational chemistry principle.

• Learn more: Skittle Experiment

7) Make Instant Ice Cream

We all scream for ice cream experiments. If you’re craving a sweet treat, why not make it yourself? This activity uses salt to turn cream and sugar into ice cream in no time.

• Learn more: Instant Ice Cream

8) 7 Layer Density Experiment

One of our favorite visual science experiments for kids, this activity is a simple illustration of the concept of density. All you need is a glass jar, food coloring, and liquids of various densities (honey, dish soap, water, etc.).

• Learn more: Density Experiment

9) Make Rock Candy

With just sugar, boiling water, a couple of sticks, and some string, kids will watch candy grow before their eyes. Rock candy takes about a week to grow, so this easy experiment for kids is a great lesson in science and patience .

• Learn more: Make Rock Candy

10) Concoct Color-Changing Invisible Ink

A science experiment disguised as a magic trick, kids can learn about basic chemistry by using invisible ink to write secret messages. This method doesn’t use heat, so is great for all ages.

• Learn more: Invisible Ink

11) Discover What Materials Block Wi-Fi Signals

Did you know that objects can get in the way of wi-fi signals? This experiment lets kids discover the extent to which common household items like aluminum foil, baking pans, or cardboard block radio waves.

• Learn more: Blocking Wi-Fi Signals

12) Make an Erupting Volcano

Making your own personal volcano is so much easier than you think. Dish soap, white vinegar, and baking are the secret ingredients that create this fantastic chemical reaction.

• Learn more: Erupting Volcano

13) Mummify a Hot Dog

Have you ever wondered about the science behind mummification? This fun experiment lets you preserve a hot dog for as long as you like and watch the changes it undergoes as it desiccates. Pro tip: if you want to eat a hot dog, stick to boiling it.

• Learn more: Mummify a Hot Dog

14) Make a Balloon-Powered Car

One of our favorite easy science experiments for kids, this engineering challenge asks you to design a car powered by air escaping from a balloon. Use household items and see how creative you can get with design!

• Learn more: Balloon-Powered Car

15) Make a Glass Bottle Xylophone

A great way for young scientists to learn about volume and pitch, this experiment shows kids how sound changes depending on how full a bottle is. A great one-day challenge, this experiment requires just a few supplies: bottles, water, and food coloring.

• Learn more: Glass Bottle Xylophone

16) Anti-gravity Ping Pong Experiment

One of the most mesmerizing science experiments for kids, this activity allows anyone to break the law of gravity. All you need is a bottle of water and a ping-pong ball. When you invert them, you’ll see something magical.

• Learn more: Anti-gravity Ping Pong Experiment

17) Apple Slice Oxidation Experiment

Your kids likely already know apple slides turn brown when left out, but this experiment lets fledgling scientists discover how variables impact oxidation. To run this experiment, kids immerse apple slices in a variety of liquids you already have in your pantry.

• Learn more: Apple Slice Oxidation

18) Make a Bubble Snake

A bubble snake maker is not your average bubble wand. An easy chemistry activity with a big payoff, this experiment lets you blow out a long snake-like strand of bubbles. For a fun group competition, see who can make the longest snake!

• Learn more: Bubble Snake

19) Turn Milk into Plastic

It may sound implausible, but you can use regular milk from your refrigerator to make DIY plastic. This experiment uses a few simple chemistry techniques to make plastic that kids can mold into toys and figurines.

• Learn more: Milk Plastic

20) DIY Lava Lamp

Not only is it fun to look at, this DIY lava lamp experiment teaches kids about density and molecule polarity. Although the lava lamp comes together in just a couple minutes, it’s an experiment that you can put on display and enjoy for as long as you like.

• Learn more: Lava Lamp

21) Make Sticky Ice

Ever heard of sticky ice? It’s no trick, with just water and salt, you can lift a chunk of ice with a thin piece of string.

• Learn more: Sticky Ice

22) Build a Popsicle Stick Catapult

With just popsicle sticks and a few other items you likely have on hand, you can send small projectiles soaring across the room. We recommend launching marshmallows into a friend’s mouth.

• Learn more: Popsicle Stick Catapult

23) Make Your Own Sundial

No need to stare at the sun, this experiment offers a fun and easy way to discover how quickly the sun crosses the sky. With little more than a piece of cardboard and a pen, kids will be able to tell time with their own homemade sundial.

• Learn more: Sundial Experiment

24) Paper Chromatography

Curious to know what color dyes are used to make markers and candy? Color chromatography separates chemicals into their individual components so you can see the surprising rainbow of colors that goes into dyes.

• Learn more: Paper Chromatography

25) Make your Tea Bag Fly

Ever wished your tea bag could fly? Us neither, but it turns out flying tea bags are the making of a fun and surprising science experiment that teaches principles of heat energy.

• Learn more: Flying Tea Bag

26) Make Oobleck

Oobleck might sound like a word from an alien language, but it’s actually a mixture of cornstarch and water. When it’s poured, it acts like water. When it’s poked, it acts like a solid. A hands-on way to teach kids about states of matter, this experiment is great for all ages.

• Learn more: Oobleck

27) Test Your Sunscreen Strength

Curious to see how well your sunscreen blocks out the sun? No need to volunteer for a sunburn. With a few pieces of black construction paper and different strength sunscreens, you can test SPF effectiveness.

• Learn more: Sunscreen Experiment

28) Walking Water Experiment

Humans may not be able to walk on water, but young scientists can make water walk through this colorful experiment. This activity shows how water travels from one cup to another through capillary action. As a bonus, this experiment uses food dye to teach kids the basics of color theory.

• Learn more: Walking Water

29) Build a Balloon Rocket

An easy introduction to propulsion, kids of any age can make their own balloon rocket at home. For a fun group activity, have each kid decorate their own balloon and race them across the room.

• Learn more: Balloon Rocket

30) Experiment with Straws

Are two straws better than one? A great activity for little kids, this experiment shows how an enclosed atmosphere responds to pressure. All you need is a few bottles, some straws, and some tape.

• Learn more: Straw Experiment

31) Make a Magnifying Glass from Ice

Trying to read the small print? Ditch your magnifying glass and use ice instead. Using just distilled water and a spherical mold, this experiment teaches kids about refraction and angular magnification.

• Learn more: Ice Magnifying Glass

32) Make Colorful Flowers

One of the most tried and true science experiments for kids, this experiment shows how flowers carry water up to their petals. With a handful of white flowers and some food dye, you can watch a rainbow bloom.

• Learn more: Colorful Flowers

33) Pop a Balloon with an Orange Peel

Everything you thought you knew about popping balloons is wrong! Even though oranges aren’t sharp, a chemical compound called limonene found in orange peels can make a balloon pop in mere seconds.

• Learn more: Pop a Balloon with an Orange Peel

34) Test the Saltiness of the Sea

A creative way to learn about density and buoyancy, this experiment tests how salty water needs to be to make an egg float. Next time you visit the ocean, bring a jar with you and try this experiment at home.

• Learn more: Test the Saltiness of the Sea

35) Make Your Own Rain

For kids curious to know how clouds work, this activity offers a simple introduction to the concepts of evaporation and precipitation. Thanks to the transformative powers of a warm windowsill, kids will get to see the water cycle take place in a plastic bag.

• Learn more: Make Your Own Rain

36) Clean Up a Mini Oil Spill

An interactive way to teach kids about ocean science, this experiment allows kids to make and then clean up an oil spill. With vegetable oil, dish soap, paper towels, and a few other supplies, kids will get to experiment to determine the best way to clean up spills.

• Learn more: Oil Spill Cleanup

37) Keep a Paper Towel Dry Underwater

Ever tried to keep a paper towel dry underwater? Science can help make the impossible possible. One of the quickest science experiments for kids, this project uses an upside-down cup to show kids that even air has volume.

• Learn more: Dry Paper Towel  

38) Use a Crayon as a Candle

Did you know you can use a crayon as a candle in a pinch? A crayon burns for about half an hour, just enough time to arrive at your own hypothesis about what makes crayons flammable.

• Learn more: Crayon Candle

39) Make a Lemon Battery

It may sound crazy, but lemons aren’t just sour—they’re also powerful. A few household supplies will let you turn a common lemon into a battery.

• Learn more: Lemon Battery

40) Model Eardrum

Did you know that sound is made of vibrations? This experiment helps kids visualize how our ear drums work. After stretching a piece of plastic wrap over a bowl, kids can place grains of rice on the surface. When they make a loud noise, the rice will jump and showcase soundwaves in action.

• Learn more: Model Eardrum

60 Easy Science Experiments for Kids—6th-12th Grade Experiments

41) design a ball launcher.

With this fun engineering experiment, you’ll use household supplies to design a catapult for a small ball or marble. For an extra challenge, design a receiver to catch the ball without letting it escape.

• Learn more: Ball Launcher and Receiver

42) Use Cabbage to Learn the pH Scale

An inventive way to learn about acids and bases, this experiment uses red cabbage to test the pH level of household foods and chemicals. Kids will see how chemicals of different acidity levels change the color of the cabbage from bright fuchsia to blue.

• Learn more: pH Scale Cabbage Test

43) Tallest Paper Tower Competition

A classic experiment for future civil engineers, you’ll design the tallest tower you can using only paper. The catch is: it needs to be strong enough to hold a heavy weight on top. This easy science experiment for kids is great for a group.

• Learn more: Tallest Paper Tower

44) Design a Paper Ball Run

Using just paper and tape, design and create a ball run that carries a marble from top to bottom. The twist: you need to make your ball run as slowly as possible.

• Learn more: Paper Ball Run

45) Make a Paper Airplane Launcher

Ever feel like your paper airplanes don’t travel very far? Science can step in to help. A great lesson in motors, engineering design, and aerodynamics, this experiment is perfect for future engineers.

• Learn more: Paper Airplane Launcher

46) Rising Water Experiment

One of the most fascinating science experiments for kids, this activity uses a candle, water, and a glass to make water rise like magic. Younger kids will marvel at the trick, older kids will learn foundational concepts of chemistry and physics.

• Learn more: Rising Water

47) Make a Mini Robot Bug

A great introduction to robotics, this mini robot is an engaging project for tweens and teens. With a clothespin, a couple batteries, and a tiny vibrating motor, you can make a robot that moves around your desk.

• Learn more: Mini Robot Bug

48) Dry Ice Bubbles

A hands-on way to learn about sublimation and chemical change, making dry ice bubbles can be your new best party trick. It requires a few pieces of special equipment (a funnel and a tube) but the supplies are affordable and the payoff is huge.

• Learn more: Dry Ice Bubbles

49) Build a Simple Electric Motor

Have you ever wondered how motors work? This simple, battery-powered motor project lets you experiment with design to see how variables affect motor rotation.

• Learn more: Simple Electric Motor

50) Crush a Can with Air Pressure

A hands-off way to manage your recyclables, this experiment uses heating and cooling to magically crush a can.

• Learn more: Air Pressure Can Crush

51) Make a Light Maze for Plants

Do you dare to control Mother Nature? With a cardboard box and a seedling, you can become as powerful as the sun and study how plants grow toward the light.

• Learn more: Light Maze

52) Discover What Makes Ice Melt Quickest

If you live somewhere with snowy winters, you probably know how important it is to make ice melt fast. This experiment lets you discover what material makes it melt the quickest. After you reach your conclusion, feel free to run further tests on icy sidewalks.

• Learn more: Make Ice Melt Quickly

53) Design a Water Bottle Rocket

Got an empty soda bottle lying around? Then you’re ready to make your own water bottle rocket. A perfect experiment for a hot summer day, this experiment offers a hands-on way to learn about physical propulsion.

• Learn more: Water Bottle Rocket

54) Watch Water Split

Did you know water is actually a chemical compound made from two different molecules? This experiment splits one element from the other, proving that water is made not from one element, but two: hydrogen and oxygen (H2O).

• Learn more: Splitting Water

55) Make Your Own Boba

For a science experiment that’s as fun as it is tasty, try making your own boba at home. This experiment studies how acids affect the ability of different foods to transform into boba, a process called spherification.

• Learn more: Make Boba

56) Build a Solar Oven

Just in case you’re ever stranded on a desert island, you’ll want to know how to build a solar oven. This fun culinary experiment lets you roast your own s’mores using a pizza box and aluminum foil.

• Learn more: Solar Oven

57) DIY Lighted Grow Box

Want to keep your outdoor plants happy all year long? Cultivate your green thumb by building an indoor, lighted grow box.

• Learn more: Grow Box

58) Make a Funnel Roll Uphill

This experiment teaches kids about the center of gravity in an illustrative, engaging way. Using two funnels and some wooden boards, this optical illusion gives kids a deeper understanding of an important scientific principle.

• Learn more: Uphill Funnell Roll

59) Create a Graphite Circuit

Did you know that you can use a pencil to create an electric circuit? Simply by doodling on a piece of paper, you can make a battery light up an LED bulb.

• Learn more: Graphite Circuit

60) Make Fruit Ripen Faster

Tired of waiting for fruit to ripen? With this kitchen experiment, test the best method for accelerating this sweet natural process.

• Learn more: Ripen Fruit

60 Easy Science Experiments for Kids—More Resources

Hungry for more science learning? Check out these articles:

• 101 Topics for the Science Fair
• How to Write a Lab Report – with Example/Template
• Best Environmental Science Summer Programs for High School Students
• Computer Science Competitions for High Schoolers
• 10 Easiest and Hardest Science Majors
• 60 Team-Building Activities for Kids and Teens
• 141 Fun, Weird, and Interesting Facts
• Teacher Tools

Christina Wood

Christina Wood holds a BA in Literature & Writing from UC San Diego, an MFA in Creative Writing from Washington University in St. Louis, and is currently a Doctoral Candidate in English at the University of Georgia, where she teaches creative writing and first-year composition courses. Christina has published fiction and nonfiction in numerous publications, including The Paris Review , McSweeney’s , Granta , Virginia Quarterly Review , The Sewanee Review , Mississippi Review , and Puerto del Sol , among others. Her story “The Astronaut” won the 2018 Shirley Jackson Award for short fiction and received a “Distinguished Stories” mention in the 2019 Best American Short Stories anthology.

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Hands On As We Grow®

Hands on kids activities for hands on moms. Focusing on kids activities perfect for toddlers and preschoolers.

50 Amazingly Simple Science Experiments for Kids at Home

Science Kindergartners Preschoolers Experiment Resources 30 Comments

Kids love experimenting , and these 50 simple science experiments for kids at home from Brigitte are perfect for all ages! Plus, you probably already have the basic supplies at home.

My daughters and I have had a lot of fun doing science experiments. Each year when we create our spring and summer list , we make sure to include “science days” which are days filled with science experiments.

Sometimes our science experiments don’t work according to plan, but I have been told that all scientists have failures with experiments from time to time.

It’s okay if they aren’t all successes.

Get the FREE Science Experiments Download

50 Simple Science Experiments with Supplies You Already Have

I love these 50 simple science experiments for you to try with your little scientists. They all use basic household supplies that you probably already have at home!

Most of these are experiments my daughters and I have done together. I hope you enjoy them as much as we have!

Get little ones involved with these easy toddler-friendly science experiment ideas!

Simple Science Experiments with Water

Not only can water  be a blast to play in, but water plus a few basic supplies equals a lot of science fun!

• Make an orange sink and float with an orange buoyancy experiment from Playdough to Plato.
• Compare the amount of salt in different types of water with this salty egg experiment  as seen on Uplifting Mayhem.
• Do a little more sinking or floating with a fun sink or float experiment  even toddlers can do from Hands On As We Grow.
• Use the free printable to record what sinks or floats in an outdoor experiment from Buggy and Buddy.
• Create some beautiful pieces of paper with this rainbow paper experiment from Science Kiddo.
• Talk about solutions as you try the “what dissolves in water” experiment  as seen on Hands On As We Grow.
• Learn about water absorption with this simple experiment from Little Bins for Little Hands.
• Mix some fun colors with this oil and water experiment  from Fun Learning for Kids.
• Make your own lava lamp , just like on  Hands On As We Grow.
• Can you keep all the water in the bag? Try it with a  leak-proof bag experiment  as seen on Hands On As We Grow.
• Learn about surface tension with this  magic finger pepper experiment  found on Hands On As We Grow.
• Make your own  water cycle in a bottle  as seen on A Dab of Glue Will Do.

Simple Science Experiments with Baking Soda and Vinegar

Baking soda + vinegar = a great chemical reaction! This fizzy reaction can fuel a variety of simple science experiments at home.

First of all, we have tested and found out the absolute best combination of baking soda and vinegar to get the best reaction possible. It makes a difference if you add vinegar to baking soda or vice versa! And how much you use!

• Inflate a balloon without blowing into it with a baking soda and vinegar balloon experiment  as seen on Little Bins for Little Hands.
• Practice colors as you do a baking soda and vinegar with color experiment as seen on Hands On As We Grow.
• Have fun outside with an outdoor volcano eruption  as seen on Preschool Inspirations.
• Have more volcano fun by making apple volcanoes as seen on The Resourceful Mama.
• Learn about acids and bases and the chemical reaction that occurs when you make apple seeds dance with a   jumping apple seeds experiment  as seen on JDaniel4s Mom.
• Watch some rice dance with a   dancing rice experiment as seen on Green Kid Crafts.
• Continue your dance party by making raisins dance with a dancing raisin experiment  as seen on 123 Homeschool 4 Me. What other items can you get to dance?
• Learn more about acids and bases by dissolving a sea shell as seen on Teach Beside Me.
• Make an egg shell disappear with this disappearing egg activity  as seen on Premeditated Leftovers.
• See how far you can launch a soda bottle with this baking soda powered boat as seen on Science Sparks.
• Make your own rocks (or eggs) with this fizzy treasure rocks experiment as seen on Living Life and Learning.
• Have some fun this summer with this frozen vinegar experiment as seen on Inspiration Laboratories.

Plant Themed Simple Science Experiments

Enjoy learning about seeds, plant parts, and how plants grow with these simple science experiments.

• Learn about how plants soak up water through their stems with a flower experiment for kids  from Growing A Jeweled Rose.
• Watch seeds sprout as you grow seeds in a jar  as seen on Teaching Mama.
• Learn about the parts of the seed with a seed coat experiment as seen on Gift of Curiosity.
• Build a house out of sponges and then watch it sprout with this sprout house as seen on The Stem Laboratory.
• Learn what liquids allow seeds to grow the best with this seed experiment  as seen on Gift of Curiosity.
• Explore how plants grow towards the light with this shoe-box maze experiment from Plants for Kids.

Animal Themed Simple Science Experiments

Learning about animals can be even more fun with some simple hands-on simple science experiments.

• Find out more about giraffes and create some giraffe spots  as seen on Preschool Powol Packets.
• Learn about how animals in the Arctic keep warm by making an arctic glove  as seen on Steve Spangler Science.
• Discover how penguins stay dry with a penguin feather experiment as seen on Raising Little Superheroes.
• Learn about different bird beaks with a bird beak experiment as seen on Blessed Beyond a Doubt.
• Explore how fish (and hermit crabs) breathe with this gill experiment  as seen on Preschool Powol Packets.
• Learn about sharks with a   shark buoyancy experiment as seen on Little Bins for Little Hands.

Even More Simple Science Experiment for Kids at Home!

If you are still looking for more science fun, you may enjoy the following simple science experiments.

• Find out how sugary drinks hurt teeth with an  eggs-periment  as seen on Feels Like Home Blog.
• Discover geodes (the state rock of Iowa) with this eggshell geode crystal experiment  as seen on Science Bob.
• Learn about air pressure with an egg and bottle experiment  as seen on Science Sparks.
• Find out what causes an apple to brown with this apple science experiment  as seen on Teach Beside Me.
• Make an  edible bubble apple with an experiment as seen on Preschool Powol Packet.
• Learn more about surface tension with a penny and water experiment  as seen on Artful Parent.
• Mix colors like magic with this color changing milk experiment  from Hands On As We Grow.
• Blow up a balloon with this soda and balloon experiment from Learn Play Imagine.
• Practice letters by making beautiful crystal letters as seen on Books and Giggles.
• Make your own indoor hovercraft  as seen on Living Life and Learning.
• Learn about colors with this beautiful butterfly chromatography craft  as seen on Buggy and Buddy.
• Make soap souffle  as seen on Steve Spangler Science.
• After talking about liquids and solids (and finding them in your own home), create oobleck  as seen on Babble Dabble Do. Is it a liquid, or is it a solid?
• Learn about frost by making some indoor frost as seen on Little Bin for Little Hands.
• Make your own homemade butter in a jar as seen on Happy Hooligans.

What scientific experiment will you try first?

About Brigitte Brulz

Brigitte Brulz is a homeschooling mom of two daughters, wife of her high school sweetheart, and author of Jobs of a Preschooler and Pickles, Pickles, I Like Pickles. She offers free coloring pages and activity ideas on her website at BrigitteBrulz.com .

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Reader Interactions

30 comments.

college brawl says

March 13, 2024 at 1:05 am

Wow, these experiments look like so much fun! I can’t wait to try them out with my kids. We’re always looking for new and creative ways to learn about science at home, and these experiments look like they’ll be perfect for us. Thanks for sharing! 😊

threadsBay says

August 31, 2023 at 3:13 am

I love science experiments! This one is really simple and easy to do.

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Science Experiments

35 Easy Science Experiments You Can Do Today!

Looking for easy science experiments to do at home or in the classroom? You’re in luck because we’ve got over 35 easy science activities for kids that will help you make science fun for all ages. 

Most of these simple science experiments for kids are easy to prepare, quick to perform, and use household items or inexpensive materials you can find almost anywhere. To connect the fun to the “why it works” you’ll find an easy to teach explanation with every experiment!

Musical Jars Science Experiment 

This super easy experiment is simple as it is fun! Kids make their own musical instruments with clear jars and water then investigate sound waves, pitch, and more.

When the experiment is complete, use the colorful new “instrument” for a fun music lesson. Kids can play and take turns to “name that tune”!

Detailed Instructions & Video Tutorial ->  Musical Jars Science Experiment

Viscosity of Liquids Science Experiment

Viscosity may be a confusing term for kids at first, but this super easy experiment can help them see viscosity in action!

With marbles, clear jars, and a few household materials, kids will make predictions, record data, and compare the results while they test high and low density liquids.

Detailed Instructions & Video Tutorial ->   Viscosity Science Experiment

Floating Egg Science Experiment

Can a solid egg float? Kids can find the answer and understand why with this quick science experiment. 

Discover just how easy it can be to make a raw egg float while testing the laws of density. We’ve included additional ideas to try so kids can make predictions and test the concept further.

Detailed Instructions & Video Tutorial ->   Floating Egg Science Experiment

Paper Towel Dry Under Water Experiment

Is it possible to keep a paper towel dry even when submerging it under water? The answer is a surprising “yes,” if you use science to help!

Start with the properties of your materials, make a prediction, then explore matter, density, volume, and more.

Detailed Instructions & Video Tutorial ->   Paper Towel Dry Under Water Experiment

Mixing Oil & Water Science Experiment

This simple experiment for kids helps them better understand density and the changes that happen when adding an emulsifier to the mix. 

Detailed Instructions & Video Tutorial ->   Mixing Oil & Water Experiment

Will it Float or Sink Science Experiment

Will it sink or will it float? This fun experiment challenges what students think they know about household items!

Students record their hypothesis for each item then test it to compare what they think will happen against their observations.

Detailed Instructions & Video Tutorial -> Float or Sink Science Experiment

Water Temperature Science Experiment

What does thermal energy look like? In this easy science experiment, kids are able to see thermal energy as they explore the concept in action.

With clear jars and food coloring, students can quickly see how molecules move differently through hot and cold water.

Detailed Instructions & Video Tutorial -> Water Temperature Science Experiment

Balloon Blow-up Science Experiment

Kids will discover how matter reacts when heated and cooled as they watch with surprise as baking soda and vinegar blow the balloon up before their eyes.

Detailed Instructions & Video Tutorial -> Balloon Blow-up Science Experiment

Floating Ping Pong Ball Science Experiment

Kids will giggle with joy with this super easy experiment. With only a ping pong ball and a hair dryer, students will have a great time while exploring Bernoulli’s Principle in action. 

We’ve included additional ideas to further explore the concept with different objects and observe the change in results.

Detailed Instructions & Video Tutorial -> Floating Ping Pong Ball Science Experiment

Hair Stand on End Science Experiment

It’s especially fun for those who’ve never seen static electricity in action before!

Detailed Instructions & Video Tutorial -> Hair Stand on End Science Experiment

Oil Bubbles in Water Science Experiment

Kids explore density and experience some chemistry when creating oil bubbles in water with everyday household items.

This experiment is particularly fun when kids see that they’ve made what looks like a lava lamp!

Detailed Instructions & Video Tutorial ->  Oil Bubbles in Water Science Experiment

Color Changing Water Science Experiment

Kids will be surprised as they watch a new color being “created” without mixing! Using only a clear bowl and glass, some food coloring, and water, this super easy science experiment is quick and easy with a huge wow factor. 

Try it with yellow and blue to follow along with our demonstration video then try different primary color combinations and explore the results.

Detailed Instructions & Video Tutorial ->  Color Changing Water Science Experiment

Magnetic Paper Clip Chain Science Experiment

It may seem a bit like magic but it’s actually science! It’s not hard to capture your kids’ attention with this quick and easy science experiment as they watch paper clips “stick” together and form a chain!

Perfect for younger children, the experiment only takes a few minutes and is a fun way to explore the concept of magnetic transference.

Detailed Instructions & Video Tutorial ->  Magnetic Paper Clip Chain Science Experiment

Is it Magnetic Science Experiment

With only a magnet and a few household items, kids will make and record their predictions, test and observe, then compare what they think is magnetic against the results.

Simple and quick, but some of the results may surprise your students!

Cloud in a Jar Experiment

This simple experiment only requires a few materials but really holds student attention as a cloud forms before their eyes!

Kids will learn new weather vocabulary as they explore how physical changes and reactions happen as clouds begin to take form. We’ve also included a helpful chart on the types of clouds.

Detailed Instructions & Video Tutorial ->  Cloud in a Jar Science Experiment

Magic Milk Science Experiment

Create a dancing rainbow of colors with this easy science experiment for kids!

Using only a few ordinary kitchen items, your students can create a color explosion in ordinary milk when they add our special ingredient. (Hint: The special ingredient (soap!) includes hydrophilic and hydrophobic molecules that make the magic happen!)

Detailed Instructions & Video Tutorial ->  Magic Milk Science Experiment

Walking Water Science Experiment

Water can’t really walk upwards against gravity, but this cool science experiment makes it seem like it can! 

Kids are able to see the capillary action process and learn how attraction and adhesive forces in action allow water to move out of one glass into another. 

Detailed Instructions & Video Tutorial -> Walking Water Science Experiment

Light Refraction Science Experiment

The results of this easy science experiment are so amazing, it makes kids (and adults) think it must be magic!

Young scientists watch in surprise while they see an arrow change directions instantly. Investigating refraction couldn’t be more fun!

Detailed Instructions & Video Tutorial -> Light Refraction Science Experiment

Dancing Raisins Experiment

Learn about the reactions of buoyancy and density in this simple science activity for kids. 

They may not need dancing shoes, but give them a glass of soda pop and the raisins in this fun experiment love to dance!

Detailed Instructions & Video Tutorial -> Dancing Raisins Science Experiment

See Sound Experiment

Kids love this experiment because they are encouraged to drum loudly so they can “see” sound waves in action!

Detailed Instructions & Video Tutorial -> See Sound Science Experiment

Elephant Toothpaste Science Experiment

Grab some giant brushes and get ready to make elephant toothpaste! Although you might not be able to get an elephant excited by this super easy experiment, kids love it!

The impressive and quick results created by the chemical reaction and the heat released in the process makes an abundant amount of fun and colorful foam!

Detailed Instructions & Video Tutorial -> Elephant Toothpaste Science Experiment

Upside Down Glass of Water Science Experiment

We all know what happens when we turn a glass of water upside down, but what if I told you you can do it without the water spilling out?

The experiment only requires a few common items and you’ll be amazed by the results of air pressure in action!

Detailed Instructions & Video Tutorial -> Upside Down Glass of Water Science Experiment

Pick up Ball with a Jar Science Experiment

It almost seems like magic but with the help of science, you can pick up a ball with an open jar!

Instead of magic, this easy science activity uses centripetal force and practice to do what seems like the impossible. 

Detailed Instructions & Video Tutorial -> Pick up Ball with a Jar Experiment

Will It Melt Science Experiment

Can you guess which items will melt? This easy outside experiment challenges what students think they know about the effects of the sun.

Pepper Move Science Experiment

Can you make pepper move and zoom away with just a light touch of your finger? With science you can!

This experiment only takes a few quick minutes from beginning to end, but the reaction caused by surface tension makes kids want to do it over and over. 

Detailed Instructions & Video Tutorial ->  Pepper Move Science Experiment

Crush a Plastic Bottle Science Experiment

Go for it, crush that bottle, but don’t touch it! Although it usually can’t be seen or touched, air pressure is pushing against all surfaces at all times.

With this easy science activity kids can see air pressure at work when they watch a bottle crushes itself!

Detailed Instructions & Video Tutorial -> Crush a Plastic Bottle Science Experiment

Egg in Vinegar Science Experiment

This vinegar science experiment will have your eggs and kids bouncing (with excitement!) before you know it!

Kids can watch and explore the results of chemical reactions as the egg changes from something that seems solid into what feels like something bouncy!

Detailed Instructions & Video Tutorial -> Egg in Vinegar Science Experiment

Straw Through a Potato Science Experiment

Can you make a normal plastic straw go into a raw, solid potato? It seems like something impossible, but science can easily make it possible!

Pick your potatoes then let kids try their strength as they explore air pressure with this super easy experiment.

Detailed Instructions & Video Tutorial -> Straw Through a Potato Science Experiment

Rainbow in a Jar Science Experiment

With only a few household items, they’ll explore mass, volume, and density with every color layer!

Detailed Instructions & Video Tutorial -> Rainbow in a Jar Experiment

Tornado in a Bottle Science Experiment

Kids can have fun while learning more about centripetal force with this fun experiment.

With a little muscle and science, kids watch with amazement as they create their own glitter cyclone in a bottle as the centripetal force vortex appears.

Detailed Instructions & Video Tutorial -> Tornado in a Bottle Science Experiment

Why Doesn’t the Water Leak Science Experiment

Can you poke holes in a plastic bag full of water without the water leaking out? With this super easy science activity you can!

Kids are stunned as they learn about polymers and how they can do what seems to be impossible.

Detailed Instructions & Video Tutorial -> Why Doesn’t the Water Leak Science Experiment

Use a Bottle to Blow-up a Balloon Experiment

Is it possible to blow up a balloon with only water and science? 

In this super easy experiment, kids learn more about how matter behaves as they watch a balloon inflate and deflate as a result of matter being heated and cooled.

Detailed Instructions & Video Tutorial -> Use a Bottle to Blow-up a Balloon Experiment

Orange Float Science Experiment

Kids explore buoyancy as they learn about and test density in this sink or float science activity.

While it only takes a few minutes, this super easy experiment invites kids to predict what they think will happen then discuss why the heavier orange floats!

Detailed Instructions & Video Tutorial -> Orange Float Science Experiment

Pick up Ice with String Science Experiment

With only a few household items, kids learn about freezing temperatures and the results they create in saltwater versus freshwater.

Detailed Instructions & Video Tutorial -> Pick Up Ice with String Science Experiment

Color Changing Walking Water Experiment

Using the concepts explored in our popular Walking Water Science Experiment, kids will see color walk from one glass to another and change colors as it goes!

The quick experiment seems to defy gravity like magic, but don’t worry, kids can find out how science makes it work!

Detailed Instructions & Video Tutorial -> Color Changing Walking Water Experiment

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At most schools, 8th grade is the last year that students participate in the Science Fair. Help your 8th grader make the most of his or her last Science Fair!

In this post, we’ve assembled 20 great science fair project ideas for 8th grade. We link each project description to its original source, where you can get more information and step-by-step instructions.

Do Baseball Stadium Dimensions Affect Batting Statistics?

By reviewing hundreds of stats, you can predict if your hypothesis is true or false.

Recommended for Grade 8+.

Source: www.sciencebuddies.org

How Does Fabric Softener Affect the Flammability of Different Fabrics?

Testing fabrics with and without added fabric softener show the scientist about fire retardant fabrics.

Recommended for Grades 8+.

Source: www.projects.juliantrubin.com

Identifying Counterfeit Bills

Why does the bank teller hold the bill under a purple light? Why does the cashier put a check mark on the bill using a special marker? Test these and find out how to identify counterfeit currency.

Source:  http://www.ScienceProject.com

3 Great Science Fair Projects for 8 th  Graders

Interesting ideas and instructions for 3 different projects, including the best way to soundproof a garage.

Recommended for grades 8+.

Source: MakeScienceFun

Science Fair Projects on Earthquakes

This site offers several different project ideas related to earthquakes. There are links available for additional information.

Recommended for Grades 7-8.

Source: www.earthquake.usgs.gov

The Science of Fingerprints by Leonard Bloch

Fingerprints offer a fun way to explore the science of forensics. This site offers some basic experiments and then takes the student on a “Crime scene” investigation using their fingerprint knowledge.

Source: www.fun-science-project-ideas.com

Gender Difference in Resting Pulse Rate of 7 th Graders

This experiment tested to see if gender made a difference in resting heart rates. Follow the scientist’s experiments to see what you conclude.

Source:  www.sciencefair-projects.org

Do Humans Have a Blind Spot?

This experiment will test if humans have a blind spot in their vision and how to find it.

Source: www.exploratorium.edu

Taste and Smell

This experiment tests the relationship between taste and smell. The site offers great guidelines, links for research and much more.

Recommended for Grades 6-8.

Source: www.sciencefair.math.iit.edu

Does Chewing Gum Make You Smarter?

This will test the theory that chewing gum will help you perform better on tests and other mental challenges.

Recommended for grades 6-8.

Source:  www.education.com

Which Gear Gives the Best Performance in a Kart Race?

These two scientists give you all of their tips to reproduce this experiment on your own to determine who will win your race.

Source: www.pbskids.org

How to Power a Radio with Solar Power

Learn how to power up a radio using the power of the sun!

Source:  www.makeitsolar.com

The Science of Tsunamis

Find out what effect the water depth has on a wave’s velocity.

Recommended for Grade 6-8.

Source: www.sciencebuddies.co

Cleaning Coins

This project explores the effectiveness of various cleaning solutions in cleaning tarnished and oxidized coins.

Source: www.education.com

Is There Chemical Contamination in Your Stream or Creek?

Using lettuce as a bioassay, students can test the quality of water. Check out these experiments for your science fair project.

Source: www.ars.usda.gov

Solar Cell Power Output vs Temperature

In this project you will build a simple circuit and experimental setup to investigate whether the power output of a solar cell changes with ambient temperature.

Does Music have an Effect on Biological Systems?

This experiment will help to determine if music has an effect on the growth rate of vegetation.

Recommended for grades 7-8.

Source: www.cool-science-projects.com

Exploring Skyscraper Design with Legos

Can you determine the best design for a skyscraper? Test out your hypotheses using Legos.

Source: www.mpmideas.com

45 Easy Science Experiments for Kids

Hello, STEM! These simple DIY activities can be done at home or in school.

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Imagine blowing the biggest bubbles imaginable — or even making bubbles within bubbles. Or sending vessels — rockets, tea bags, airplanes — soaring through the sky for impossible distances. Now imagine making things explode, or change colors, or reveal hidden messages with just a few simple mixtures.

None of this is magic. It's all science that you can do at home, most likely with ingredients you already have in your house. So, next time you need a boredom-busting indoor activity on a rainy day or a DIY project to get their minds humming, try one of these best at-home science experiments for kids , which cover topics like cover magnetism, surface tension, astronomy, chemistry, physics and more.

First off, it's good to start them off with the scientific method. Give them a journal to record their observations, questions, hypotheses, experiments, results and conclusions. As always, safety counts: wear goggles and coats or aprons if need be (sometimes kids get a kick out of how scientific the protective gear makes them look), and always make sure that the kids are supervised when doing them. (Warning: Some of these are messy!)

These experiments are mostly designed for preschoolers through elementary schoolers — with a couple that are either demonstrations or better for older kids — but if you have a younger one, you can check out these 1-year-old learning activities , toddler learning activities and preschool/kindergarten learning activities , some of which also cover STEM subjects.

Floating Fish

Here's another one that deals with solubility and density.

• Draw the outline of a fish on the bottom of a glass plate or tray in dry-erase marker. Retrace your drawing to make sure all the lines are connected. Let dry for a minute or two.
• Fill the measuring cup with tap water. Place the pour spout just inside the corner of the dish and add water very slowly until it just covers the bottom. Be careful not to pour water directly onto your drawing or make splashes near it. The water will move toward your drawing, eventually surrounding it. Observe what happens. If the water splashes or it doesn’t work on your first try, empty the dish, erase the drawing with a paper towel, dry off the dish, and try again.
• Tilt the dish slightly from side to side. What happens? Jot it down.

The ink in dry erase markers is engineered to be slippery. It’s made with a chemical that causes it to easily release from surfaces. (Permanent markers are made with a chemical that makes the ink stick to surfaces, so be sure not to use these in your experiment!)

The easy-release ink lets go from a surface, but why does it float? There are two reasons. First, dry erase ink isn’t soluble, which means it won’t dissolve in water. Second, dry erase ink is less dense than the water, so it becomes buoyant, meaning it can float. When you tilt the dish, the fish moves around on the water’s surface.

From Good Housekeeping Amazing Science: 83 Hands-on S.T.E.A.M Experiments for Curious Kids! See more in the book »

Brush, Brush!

This one will really get them into brushing their teeth once they scientifically prove all the good things that toothpaste can do.

• Write on sticky notes: Soda 1, Soda 2, Juice 1, and Juice 2. Place them in a row on a counter.
• Fill two glasses halfway with brown soda and place behind the Soda 1 and Soda 2 sticky notes. Fill two glasses halfway with lemon juice and place behind the Juice 1 and Juice 2 sticky notes.
• Carefully place one egg in the bowl. Squeeze a big dollop — about one tablespoon — of toothpaste on top of the egg and gently rub the toothpaste all around with your hands until the egg is completely covered in a thick layer of toothpaste. Repeat with a second egg.
• Gently submerge the toothpaste-covered eggs into the liquids: one egg in the glass labeled Soda 1 and the other egg in the glass labeled Juice 1. Wash and dry your hands.
• Gently submerge the remaining eggs, without toothpaste on them, in the remaining glasses: one in the glass labeled Soda 2 and the other in the glass of juice labeled Juice 2. Wash and dry your hands. Leave the eggs in the glasses for 12 hours.
• After 12 hours, remove the eggs from the glasses of soda one at a time. Rinse them in cool water and pat them dry with the towel. Place each egg by the sticky note of the glass it was in. Are the eggs the same or different colors?
• Remove the eggs from the glasses of juice one at a time. Rinse them under the faucet and pat them dry. Place each egg by the sticky note of the glass it was in. Feel the eggs gently. Does one feel stronger or weaker than the other?
• Write down your observations in your science notebook.

The eggshells in this experiment represent the enamel (outer coating) on your teeth. Toothpaste cleans your teeth and prevents stains: it removes food and drink particles that are stuck on your teeth. Teeth can be stained easily by dark-colored liquids like cola, coffee or tea. The egg without toothpaste will be brown and discolored. The egg covered in toothpaste was protected from turning brown.

Toothpaste also protects your pearly whites from decay (breaking down). The egg without toothpaste left in the lemon juice was worn down and soft to the touch, while the egg that was protected with toothpaste is stronger. The lemon juice is acidic, and those acids broke down the shell just as acidic drinks can wear away your tooth enamel. When a tooth is worn down, a cavity can form more easily. But the fluoride in toothpaste mixes with your saliva to create a protective coating around your tooth enamel. It helps keep your teeth strong and cavity-free.

Grow an Avocado Tree

For an easy lesson in Earth Science, your family can grow an avocado tree from a pit. You can buy an AvoSeedo kit , or just peel the seed and suspend it over water with toothpicks.

Get the tutorial »

Milk Bottle Xylophone

No for an experiment in sound!

• Arrange six glass jars or bottles, all the same size with no lids, in a line. What will each jar sound like when you tap it with a spoon? Make a prediction, then tap each jar. Record your observations.
• Next, put water in each of the jars. Pour 1⁄4 cup (60 ml) of water into the first jar. Add 1⁄2 cup (120 ml) of water to the second jar. Continue in 1⁄4-cup increments, adding 3⁄4 cup (180 ml) of water to the third jar, 1 cup (240 ml) of water to the fourth jar, 11⁄4 cups (300 ml) of water to the fifth jar, and 11⁄2 cups (360 ml) to the sixth jar. Add a couple of drops of food coloring to each jar.
• What will each jar sound like? Will they sound the same or different than when the container was empty? Will they sound the same or different from one another? Record your predictions.
• Tap each jar with a metal spoon. Write down your observations about each jar’s pitch (how high or low a sound is) in your notebook.

Sound waves are created by vibrations, which are back-and-forth movements that are repeated again and again. Pitch depends on the frequency of the waves — how many are created each second. A high pitch is created by high-frequency sound waves, and can sound squeaky. A low pitch is created by low-frequency sound waves, and sounds deep and booming.

When you tapped the jar, it vibrated. The vibrations traveled from the jar to the water to the air and eventually to your ears. The jars with more water had a low pitch. The sound waves vibrated more slowly because they had more water to travel through. The jars with less water had higher pitches. The sound waves vibrated faster because they had less water to travel through. A jar with no water in it makes the highest pitch because it has the least substance to travel through.

"Elephant Toothpaste"

Okay, elephants don't really brush with this stuff, which is made from a chemical reaction between hydrogen peroxide, yeast, dish soap and a few other simple ingredients. But this experiment has a big "wow" factor since, when the substances are mixed, the "toothpaste" foams out of the bottle. You can use it to teach kids about catalysts and exothermic reactions.

Get the tutorial at Babble Dabble Do »

DIY Compass

Explore the way magnetism works, and how it affects everyday objects, by magnetizing a needle and making a DIY compass. You can even spin the compass in the water, and it'll end up pointing the right way again.

Get the tutorial at STEAM Powered Family »

Craft Stick Chain Reaction

Kids can learn about the differences between potential and kinetic energy with this chain reaction. It makes a big impact: Once the tension is released, the pom poms go flying through the air!

Get the the tutorial at Science Sparks »

Color-Changing Invisible Ink

Kids will feel like super-spies when they use this heatless method to reveal pictures or colors written with "invisible ink." You can try different acid/base combinations to see which one makes the most dramatic result.

Get the tutorial at Research Parent »

Paper Bridge

Get the engineering back into STEM with this activity, which challenges kids to create a paper bridge that's strong enough to hold as many pennies as possible. How can they manipulate the paper to make it sturdier? (Hint: Fold it!)

See the paper bridge tutorial at KidsActivities.com »

Challenge your little scientist to lift up an ice cube with just a piece of string. It's possible ... with a little salt to help. Salt melts the ice and lowers the freezing point of the ice cube, which absorbs the heat from the water around it, making the water cold enough to re-freeze around the string.

Get the tutorial at Playdough to Plato »

Marshmallow Catapult

Another lesson in potential and kinetic energy, kids will love sending mini marshmallows flying in the name of science. Change some of the variables and see how that affects the marshmallow's trajectory.

Get the tutorial at Hello, Wonderful »

Leaf Breathing

It's hard for kids to picture how plants and trees "breathe" through their leaves — until they see the bubbles appear on a leaf that's submerged in water. You can also teach them about photosynthesis by putting different leaves in different spots with varying levels of sunlight.

Get the tutorial at KC EDventures »

Hoop-and-Straw Airplane

We all remember how to fold those classic, triangular paper airplanes, but these hoop-and-straw airplanes fly way better (and straighter). Experiment by changing the length of the straw and the size of the hoops and see how it affects the flight.

Get the tutorial at Mombrite »

Film Canister Rocket

Blast off! You don't need jet fuel to make these rockets go, just Alka-Seltzer tablets and baking soda, but they'll be amazed when they achieve lift-off! (Note: If you can't find old film canisters, tubes of Airborne work, too.)

Get the tutorial at Raising Lifelong Learners »

Coin Inertia

Stack up about five or so coins on a piece of cardboard and place it over a glass of water. Then, flick the cardboard out from on top of the glass. Do the coins drop into the water, or ride with the cardboard? Due to inertia, they drop into the water — a very visual (and fun!) demonstration of Newton's First Law of Motion.

Get the tutorial at Engineering Emily »

Apple Oxidation

What works best for keeping an apple from turning brown? Test to find out! Slice up an apple, and let each slice soak in a different liquid. Then take them out, lay them on a tray, and check the brownness after three minutes, six minutes and so on. Not only does this test the properties of different liquids, it also helps students practice the scientific method if they create hypotheses about which liquids would be most effective.

Get the tutorial at Jennifer Findley »

RELATED: 50 Fun Activities for Kids Will Keep Them Entertained for Hours

Coffee Ground Fossils

By making a salt dough with coffee grounds and pressing various shapes into it (toy dinosaur feet, seashells), kids can get a better understanding of how fossils are made. If you poke a hole in the top before it dries, the kids can hang their "fossils" up in their rooms.

Get the tutorial at Crafts by Amanda »

Chromatography Flowers

Chromatography is the process of separating a solution into different parts — like the pigments in the ink used in markers. If you draw stripes around a coffee filter, then fold it up and dip the tip in water, the water will travel up the filter and separate the marker ink into its different pigments (in cool patterns that you can display as a craft project). This family made the end-result even brighter by adding an LED circuit to the center.

Get the tutorial at Steam Powered Family »

Water Walking

You'll need six containers of water for this one: three with clear water, one with red food coloring, one with blue coloring, and one with yellow coloring. Arrange them in a circle, alternating colored and clear containers, and make bridges between the containers with folded paper towels. Your kids will be amazed to see the colored water "walk" over the bridges and into the clear containers, mixing colors, and giving them a first-hand look at the magic of capillarity.

Get the tutorial at Fun Learning for Kids »

Sunscreen Test

This experiment puts the A (art) in STEAM: Paint different designs on construction paper with different sunscreens, leave the papers out in the sun and compare the results. Then, hang your "conclusions" on your fridge.

Get the tutorial at Tonya Staab »

Marisa (she/her) has covered all things parenting, from the postpartum period through the empty nest, for Good Housekeeping since 2018; she previously wrote about parents and families at Parents and Working Mother . She lives with her husband and daughter in Brooklyn, where she can be found dominating the audio round at her local bar trivia night or tweeting about movies.