The Experiment Archive
Physics experiments
Floating ping pong ball
Special: Fire bubbles
Water implosion
Warm and cold plates
Inexhaustible bottle
Heavy smoke
Brownian motion
Flying static ring
Special: Burning money
Special: Burning towel
Water sucking bottle
Water sucking glass
Imploding soda can
Rolling static soda can
Static paper ghost
Shrinking chip bag
Electric motor
Flashy electric motor
Balloon rocket
Water whistle
Wind-up spinner toy
Balancing soda can
Fireproof balloon
Straw propeller
Electromagnet
Straw rocket launcher
Straw duck call
Silo of salt
Microwave light bulb
Homemade marble run
Cartesian diver
Content of website.
- Skip to primary navigation
- Skip to main content
- Skip to primary sidebar
- FREE Experiments
- Kitchen Science
- Climate Change
- Egg Experiments
- Fairy Tale Science
- Edible Science
- Human Health
- Inspirational Women
- Forces and Motion
- Science Fair Projects
- STEM Challenges
- Science Sparks Books
- Contact Science Sparks
- Science Resources for Home and School
Top 5 physics experiments you can do at home
October 17, 2022 By Emma Vanstone Leave a Comment
Physics is key to understanding the world around us. While some aspects may seem tricky to understand, many fundamental physics concepts can be broken down into simple concepts, some of which can be demonstrated using basic equipment at home.
This list of 5 physics experiments you can try at home is a great starting point for understanding physics and, hopefully a source of inspiration for little scientists everywhere!
Physics experiments you can do at home
1. archimedes and density.
The story behind Archimedes’ discovery of density is that he was asked by the King of Sicily to work out whether a goldsmith had replaced some gold from a crown with silver. Archimedes needed to determine if the goldsmith had cheated without damaging the crown.
The crown weighed the same as the gold the King had given the goldsmith, but gold is more dense than silver, so if there were silver in the crown its density would be less than if it were pure gold. Archimedes realised that if he could measure the crown’s volume, he could work out its density, but calculating the volume of a crown shape was a tough challenge. According to the story, Archimedes was having a bath one day when he realised the water level rose as he lowered himself into the bathtub. He realised that the volume of water displaced was equal to the volume of his body in the water.
Archimedes placed the crown in water to work out its density and realised the goldsmith had cheated the king!
Density Experiment
One fun way to demonstrate density is to make a density column. Choose a selection of liquids and place them in density order, from the most dense to the least dense. Carefully pour a small amount of each into a tall jar or glass, starting with the most dense. You should end up with a colourful stack of liquids!
2. Split light into the colours of the rainbow
Isaac Newton experimented with prisms and realised that light is made up of different colours ( the colours of the rainbow ). Newton made this discovery in the 1660s. It wasn’t until the 1900s that physicists discovered the electromagnetic spectrum , which includes light waves we can’t see, such as microwaves, x-ray waves, infrared and gamma rays.
How to split light
Splitting white light into the colours of the rainbow sounds tricky, but all you need is a prism. A prism is a transparent block shaped so light bends ( refracts ) as it passes through. Some colours bend more than others, so the whole spectrum of colours can be seen.
If you don’t have a prism, you can also use a garden hose! Stand with your back to the sun, and you’ll see a rainbow in the water! This is because drops of water act like a prism.
3. Speed of Falling Objects
Galileo’s falling objects.
Aristotle thought that heavy objects fell faster than lighter objects, a theory later disproved by Galileo .
It is said that Galileo dropped two cannonballs with different weights from the leaning tower of Pisa, which hit the ground at the same time. All objects accelerate at the same rate as they fall.
If you drop a feather and a hammer from the same height, the hammer will hit the ground first, but this is because of air resistance!
If a hammer and feather are dropped somewhere with no air resistance, they hit the ground simultaneously. Commander David Scott proved this was true on the Apollo 15 moonwalk!
Hammer and Feather Experiment on the Moon
Brian Cox also proved Galileo’s theory to be correct by doing the same experiment in a vacuum!
While you won’t be able to replicate a hammer or heavy ball and feather falling, you can investigate with two objects of the same size but different weights. This means the air resistance is the same for both objects, so the only difference is the weight.
Take two empty water bottles of the same size. Fill one to the top with water and leave the other empty. Drop them from the same height. Both will hit the ground at the same time!
4. Newton’s Laws of Motion
Sir Isaac Newton pops up a lot in any physics book as he came up with many of the laws that describe our universe and is undoubtedly one of the most famous scientists of all time. Newton’s Laws of Motion describe how things move and the relationship between a moving object and the forces acting on it.
Making and launching a mini rocket is a great way to learn about Newton’s Laws of Motion .
The rocket remains motionless unless a force acts on it ( Newton’s First Law ).
The acceleration of the rocket is affected by its mass. If you increase the mass of the rocket, its acceleration will be less than if it had less mass ( Newton’s Second Law ).
The equal and opposite reaction from the gas forcing the cork downwards propels the rocket upwards ( Newton’s Third Law ).
4. Pressure
Pressure is the force per unit area.
Imagine standing on a Lego brick. If you stand on a large brick, it will probably hurt. If you stand on a smaller brick with the same force it will hurt more as the pressure is greater!
Snowshoes are usually very wide. This is to reduce the pressure on the snow so it sinks less as people walk on it.
Pressure and Eggs
If you stand on one egg, it will most likely break. If you stand on lots of eggs with the same force, you increase the area the force is applied over and, therefore, reduce the pressure on each individual egg.
That’s five easy physics experiments you can do at home! Can you think of any more?
Last Updated on June 14, 2024 by Emma Vanstone
Safety Notice
Science Sparks ( Wild Sparks Enterprises Ltd ) are not liable for the actions of activity of any person who uses the information in this resource or in any of the suggested further resources. Science Sparks assume no liability with regard to injuries or damage to property that may occur as a result of using the information and carrying out the practical activities contained in this resource or in any of the suggested further resources.
These activities are designed to be carried out by children working with a parent, guardian or other appropriate adult. The adult involved is fully responsible for ensuring that the activities are carried out safely.
Reader Interactions
Leave a reply cancel reply.
Your email address will not be published. Required fields are marked *
- Grades 6-12
- School Leaders
Don’t Miss Our List of the Top 2024-25 Competitions for Students in Grades K-12! 🏆
72 Easy Science Experiments Using Materials You Already Have On Hand
Because science doesn’t have to be complicated.
If there is one thing that is guaranteed to get your students excited, it’s a good science experiment! While some experiments require expensive lab equipment or dangerous chemicals, there are plenty of cool projects you can do with regular household items. We’ve rounded up a big collection of easy science experiments that anybody can try, and kids are going to love them!
Easy Chemistry Science Experiments
Easy physics science experiments, easy biology and environmental science experiments, easy engineering experiments and stem challenges.
1. Taste the Rainbow
Teach your students about diffusion while creating a beautiful and tasty rainbow! Tip: Have extra Skittles on hand so your class can eat a few!
Learn more: Skittles Diffusion
2. Crystallize sweet treats
Crystal science experiments teach kids about supersaturated solutions. This one is easy to do at home, and the results are absolutely delicious!
Learn more: Candy Crystals
3. Make a volcano erupt
This classic experiment demonstrates a chemical reaction between baking soda (sodium bicarbonate) and vinegar (acetic acid), which produces carbon dioxide gas, water, and sodium acetate.
Learn more: Best Volcano Experiments
4. Make elephant toothpaste
This fun project uses yeast and a hydrogen peroxide solution to create overflowing “elephant toothpaste.” Tip: Add an extra fun layer by having kids create toothpaste wrappers for plastic bottles.
5. Blow the biggest bubbles you can
Add a few simple ingredients to dish soap solution to create the largest bubbles you’ve ever seen! Kids learn about surface tension as they engineer these bubble-blowing wands.
Learn more: Giant Soap Bubbles
6. Demonstrate the “magic” leakproof bag
All you need is a zip-top plastic bag, sharp pencils, and water to blow your kids’ minds. Once they’re suitably impressed, teach them how the “trick” works by explaining the chemistry of polymers.
Learn more: Leakproof Bag
7. Use apple slices to learn about oxidation
Have students make predictions about what will happen to apple slices when immersed in different liquids, then put those predictions to the test. Have them record their observations.
Learn more: Apple Oxidation
8. Float a marker man
Their eyes will pop out of their heads when you “levitate” a stick figure right off the table! This experiment works due to the insolubility of dry-erase marker ink in water, combined with the lighter density of the ink.
Learn more: Floating Marker Man
9. Discover density with hot and cold water
There are a lot of easy science experiments you can do with density. This one is extremely simple, involving only hot and cold water and food coloring, but the visuals make it appealing and fun.
Learn more: Layered Water
10. Layer more liquids
This density demo is a little more complicated, but the effects are spectacular. Slowly layer liquids like honey, dish soap, water, and rubbing alcohol in a glass. Kids will be amazed when the liquids float one on top of the other like magic (except it is really science).
Learn more: Layered Liquids
11. Grow a carbon sugar snake
Easy science experiments can still have impressive results! This eye-popping chemical reaction demonstration only requires simple supplies like sugar, baking soda, and sand.
Learn more: Carbon Sugar Snake
12. Mix up some slime
Tell kids you’re going to make slime at home, and watch their eyes light up! There are a variety of ways to make slime, so try a few different recipes to find the one you like best.
13. Make homemade bouncy balls
These homemade bouncy balls are easy to make since all you need is glue, food coloring, borax powder, cornstarch, and warm water. You’ll want to store them inside a container like a plastic egg because they will flatten out over time.
Learn more: Make Your Own Bouncy Balls
14. Create eggshell chalk
Eggshells contain calcium, the same material that makes chalk. Grind them up and mix them with flour, water, and food coloring to make your very own sidewalk chalk.
Learn more: Eggshell Chalk
15. Make naked eggs
This is so cool! Use vinegar to dissolve the calcium carbonate in an eggshell to discover the membrane underneath that holds the egg together. Then, use the “naked” egg for another easy science experiment that demonstrates osmosis .
Learn more: Naked Egg Experiment
16. Turn milk into plastic
This sounds a lot more complicated than it is, but don’t be afraid to give it a try. Use simple kitchen supplies to create plastic polymers from plain old milk. Sculpt them into cool shapes when you’re done!
17. Test pH using cabbage
Teach kids about acids and bases without needing pH test strips! Simply boil some red cabbage and use the resulting water to test various substances—acids turn red and bases turn green.
Learn more: Cabbage pH
18. Clean some old coins
Use common household items to make old oxidized coins clean and shiny again in this simple chemistry experiment. Ask kids to predict (hypothesize) which will work best, then expand the learning by doing some research to explain the results.
Learn more: Cleaning Coins
19. Pull an egg into a bottle
This classic easy science experiment never fails to delight. Use the power of air pressure to suck a hard-boiled egg into a jar, no hands required.
Learn more: Egg in a Bottle
20. Blow up a balloon (without blowing)
Chances are good you probably did easy science experiments like this when you were in school. The baking soda and vinegar balloon experiment demonstrates the reactions between acids and bases when you fill a bottle with vinegar and a balloon with baking soda.
21 Assemble a DIY lava lamp
This 1970s trend is back—as an easy science experiment! This activity combines acid-base reactions with density for a totally groovy result.
22. Explore how sugary drinks affect teeth
The calcium content of eggshells makes them a great stand-in for teeth. Use eggs to explore how soda and juice can stain teeth and wear down the enamel. Expand your learning by trying different toothpaste-and-toothbrush combinations to see how effective they are.
Learn more: Sugar and Teeth Experiment
23. Mummify a hot dog
If your kids are fascinated by the Egyptians, they’ll love learning to mummify a hot dog! No need for canopic jars , just grab some baking soda and get started.
24. Extinguish flames with carbon dioxide
This is a fiery twist on acid-base experiments. Light a candle and talk about what fire needs in order to survive. Then, create an acid-base reaction and “pour” the carbon dioxide to extinguish the flame. The CO2 gas acts like a liquid, suffocating the fire.
25. Send secret messages with invisible ink
Turn your kids into secret agents! Write messages with a paintbrush dipped in lemon juice, then hold the paper over a heat source and watch the invisible become visible as oxidation goes to work.
Learn more: Invisible Ink
26. Create dancing popcorn
This is a fun version of the classic baking soda and vinegar experiment, perfect for the younger crowd. The bubbly mixture causes popcorn to dance around in the water.
27. Shoot a soda geyser sky-high
You’ve always wondered if this really works, so it’s time to find out for yourself! Kids will marvel at the chemical reaction that sends diet soda shooting high in the air when Mentos are added.
Learn more: Soda Explosion
28. Send a teabag flying
Hot air rises, and this experiment can prove it! You’ll want to supervise kids with fire, of course. For more safety, try this one outside.
Learn more: Flying Tea Bags
29. Create magic milk
This fun and easy science experiment demonstrates principles related to surface tension, molecular interactions, and fluid dynamics.
Learn more: Magic Milk Experiment
30. Watch the water rise
Learn about Charles’s Law with this simple experiment. As the candle burns, using up oxygen and heating the air in the glass, the water rises as if by magic.
Learn more: Rising Water
31. Learn about capillary action
Kids will be amazed as they watch the colored water move from glass to glass, and you’ll love the easy and inexpensive setup. Gather some water, paper towels, and food coloring to teach the scientific magic of capillary action.
Learn more: Capillary Action
32. Give a balloon a beard
Equally educational and fun, this experiment will teach kids about static electricity using everyday materials. Kids will undoubtedly get a kick out of creating beards on their balloon person!
Learn more: Static Electricity
33. Find your way with a DIY compass
Here’s an old classic that never fails to impress. Magnetize a needle, float it on the water’s surface, and it will always point north.
Learn more: DIY Compass
34. Crush a can using air pressure
Sure, it’s easy to crush a soda can with your bare hands, but what if you could do it without touching it at all? That’s the power of air pressure!
35. Tell time using the sun
While people use clocks or even phones to tell time today, there was a time when a sundial was the best means to do that. Kids will certainly get a kick out of creating their own sundials using everyday materials like cardboard and pencils.
Learn more: Make Your Own Sundial
36. Launch a balloon rocket
Grab balloons, string, straws, and tape, and launch rockets to learn about the laws of motion.
37. Make sparks with steel wool
All you need is steel wool and a 9-volt battery to perform this science demo that’s bound to make their eyes light up! Kids learn about chain reactions, chemical changes, and more.
Learn more: Steel Wool Electricity
38. Levitate a Ping-Pong ball
Kids will get a kick out of this experiment, which is really all about Bernoulli’s principle. You only need plastic bottles, bendy straws, and Ping-Pong balls to make the science magic happen.
39. Whip up a tornado in a bottle
There are plenty of versions of this classic experiment out there, but we love this one because it sparkles! Kids learn about a vortex and what it takes to create one.
Learn more: Tornado in a Bottle
40. Monitor air pressure with a DIY barometer
This simple but effective DIY science project teaches kids about air pressure and meteorology. They’ll have fun tracking and predicting the weather with their very own barometer.
Learn more: DIY Barometer
41. Peer through an ice magnifying glass
Students will certainly get a thrill out of seeing how an everyday object like a piece of ice can be used as a magnifying glass. Be sure to use purified or distilled water since tap water will have impurities in it that will cause distortion.
Learn more: Ice Magnifying Glass
42. String up some sticky ice
Can you lift an ice cube using just a piece of string? This quick experiment teaches you how. Use a little salt to melt the ice and then refreeze the ice with the string attached.
Learn more: Sticky Ice
43. “Flip” a drawing with water
Light refraction causes some really cool effects, and there are multiple easy science experiments you can do with it. This one uses refraction to “flip” a drawing; you can also try the famous “disappearing penny” trick .
Learn more: Light Refraction With Water
44. Color some flowers
We love how simple this project is to re-create since all you’ll need are some white carnations, food coloring, glasses, and water. The end result is just so beautiful!
45. Use glitter to fight germs
Everyone knows that glitter is just like germs—it gets everywhere and is so hard to get rid of! Use that to your advantage and show kids how soap fights glitter and germs.
Learn more: Glitter Germs
46. Re-create the water cycle in a bag
You can do so many easy science experiments with a simple zip-top bag. Fill one partway with water and set it on a sunny windowsill to see how the water evaporates up and eventually “rains” down.
Learn more: Water Cycle
47. Learn about plant transpiration
Your backyard is a terrific place for easy science experiments. Grab a plastic bag and rubber band to learn how plants get rid of excess water they don’t need, a process known as transpiration.
Learn more: Plant Transpiration
48. Clean up an oil spill
Before conducting this experiment, teach your students about engineers who solve environmental problems like oil spills. Then, have your students use provided materials to clean the oil spill from their oceans.
Learn more: Oil Spill
49. Construct a pair of model lungs
Kids get a better understanding of the respiratory system when they build model lungs using a plastic water bottle and some balloons. You can modify the experiment to demonstrate the effects of smoking too.
Learn more: Model Lungs
50. Experiment with limestone rocks
Kids love to collect rocks, and there are plenty of easy science experiments you can do with them. In this one, pour vinegar over a rock to see if it bubbles. If it does, you’ve found limestone!
Learn more: Limestone Experiments
51. Turn a bottle into a rain gauge
All you need is a plastic bottle, a ruler, and a permanent marker to make your own rain gauge. Monitor your measurements and see how they stack up against meteorology reports in your area.
Learn more: DIY Rain Gauge
52. Build up towel mountains
This clever demonstration helps kids understand how some landforms are created. Use layers of towels to represent rock layers and boxes for continents. Then pu-u-u-sh and see what happens!
Learn more: Towel Mountains
53. Take a play dough core sample
Learn about the layers of the earth by building them out of Play-Doh, then take a core sample with a straw. ( Love Play-Doh? Get more learning ideas here. )
Learn more: Play Dough Core Sampling
54. Project the stars on your ceiling
Use the video lesson in the link below to learn why stars are only visible at night. Then create a DIY star projector to explore the concept hands-on.
Learn more: DIY Star Projector
55. Make it rain
Use shaving cream and food coloring to simulate clouds and rain. This is an easy science experiment little ones will beg to do over and over.
Learn more: Shaving Cream Rain
56. Blow up your fingerprint
This is such a cool (and easy!) way to look at fingerprint patterns. Inflate a balloon a bit, use some ink to put a fingerprint on it, then blow it up big to see your fingerprint in detail.
57. Snack on a DNA model
Twizzlers, gumdrops, and a few toothpicks are all you need to make this super-fun (and yummy!) DNA model.
Learn more: Edible DNA Model
58. Dissect a flower
Take a nature walk and find a flower or two. Then bring them home and take them apart to discover all the different parts of flowers.
59. Craft smartphone speakers
No Bluetooth speaker? No problem! Put together your own from paper cups and toilet paper tubes.
Learn more: Smartphone Speakers
60. Race a balloon-powered car
Kids will be amazed when they learn they can put together this awesome racer using cardboard and bottle-cap wheels. The balloon-powered “engine” is so much fun too.
Learn more: Balloon-Powered Car
61. Build a Ferris wheel
You’ve probably ridden on a Ferris wheel, but can you build one? Stock up on wood craft sticks and find out! Play around with different designs to see which one works best.
Learn more: Craft Stick Ferris Wheel
62. Design a phone stand
There are lots of ways to craft a DIY phone stand, which makes this a perfect creative-thinking STEM challenge.
63. Conduct an egg drop
Put all their engineering skills to the test with an egg drop! Challenge kids to build a container from stuff they find around the house that will protect an egg from a long fall (this is especially fun to do from upper-story windows).
Learn more: Egg Drop Challenge Ideas
64. Engineer a drinking-straw roller coaster
STEM challenges are always a hit with kids. We love this one, which only requires basic supplies like drinking straws.
Learn more: Straw Roller Coaster
65. Build a solar oven
Explore the power of the sun when you build your own solar ovens and use them to cook some yummy treats. This experiment takes a little more time and effort, but the results are always impressive. The link below has complete instructions.
Learn more: Solar Oven
66. Build a Da Vinci bridge
There are plenty of bridge-building experiments out there, but this one is unique. It’s inspired by Leonardo da Vinci’s 500-year-old self-supporting wooden bridge. Learn how to build it at the link, and expand your learning by exploring more about Da Vinci himself.
Learn more: Da Vinci Bridge
67. Step through an index card
This is one easy science experiment that never fails to astonish. With carefully placed scissor cuts on an index card, you can make a loop large enough to fit a (small) human body through! Kids will be wowed as they learn about surface area.
68. Stand on a pile of paper cups
Combine physics and engineering and challenge kids to create a paper cup structure that can support their weight. This is a cool project for aspiring architects.
Learn more: Paper Cup Stack
69. Test out parachutes
Gather a variety of materials (try tissues, handkerchiefs, plastic bags, etc.) and see which ones make the best parachutes. You can also find out how they’re affected by windy days or find out which ones work in the rain.
Learn more: Parachute Drop
70. Recycle newspapers into an engineering challenge
It’s amazing how a stack of newspapers can spark such creative engineering. Challenge kids to build a tower, support a book, or even build a chair using only newspaper and tape!
Learn more: Newspaper STEM Challenge
71. Use rubber bands to sound out acoustics
Explore the ways that sound waves are affected by what’s around them using a simple rubber band “guitar.” (Kids absolutely love playing with these!)
Learn more: Rubber Band Guitar
72. Assemble a better umbrella
Challenge students to engineer the best possible umbrella from various household supplies. Encourage them to plan, draw blueprints, and test their creations using the scientific method.
Learn more: Umbrella STEM Challenge
Plus, sign up for our newsletters to get all the latest learning ideas straight to your inbox.
You Might Also Like
16 Red-Hot Volcano Science Experiments and Kits For Classrooms or Science Fairs
Kids will erupt with excitement! Continue Reading
Copyright © 2024. All rights reserved. 5335 Gate Parkway, Jacksonville, FL 32256