Elephant Toothpaste – Two Ways to Make It

Elephant Toothpaste

Elephant toothpaste is a chemical reaction that makes a volcano of foam when soapy water traps gases from the rapid decomposition of hydrogen peroxide. There are two easy methods for making elephant toothpaste. One makes a giant mountain of foam, while the other produces a smaller effect but is safe enough for kids to touch. The dramatic reaction uses strong peroxide and potassium iodide, while the kid-friendly version uses dilute peroxide and replaces potassium iodide with yeast. Here are instructions for both methods and a look at the chemistry involved.

Why Is It Called Elephant Toothpaste?

First, you may wonder why the reaction has the name “elephant toothpaste.” It’s because the thick column of foam escaping a tube looks like toothpaste big enough for an elephant to use. Also, it’s a lot easier and more descriptive than calling the reaction “rapid decomposition of peroxide”. After all, the point of elephant toothpaste is engaging people in the wonder of science. Even if someone doesn’t understand the chemistry, the project is fun and entertaining.

How to Make Giant Elephant Toothpaste

When you see videos of the world’s largest elephant toothpaste, you’re viewing the classic version of the demonstration.

This version uses concentrated hydrogen peroxide, potassium iodide or sodium iodide, liquid dishwashing detergent, water, and (if desired) food coloring:

  • 30% hydrogen peroxide (H 2 O 2 )
  • Potassium iodide (KI) or sodium iodide (NaI)
  • Liquid dishwashing detergent
  • Food coloring (optional)
  • Large graduated cylinder or Erlenmeyer flask
  • Tray or tarp to catch the foam

The chemicals are available online, although it’s easier to just pick up the peroxide at a beauty supply store. Choose any tall container for the demonstration, but use glass and not plastic because the reaction generates heat.

Start by putting on proper safety gear, including safety goggles and gloves.

  • First, prepare a saturated solution of potassium iodide or sodium iodide in water. In a beaker, dissolve crystals of either chemical in about 120 ml (4 ounces) of water. Continue stirring in the solid until no more dissolves. It takes about a tablespoon of the dry chemical. But, measurements are not critical here. Set aside the solution for now.
  • Set the cylinder or flask in a tray or on a tarp. Pour about 60 ml (2 ounces) of 30% hydrogen peroxide into the glass tube. Add a squirt (about 5 ml) of dishwashing liquid to the tube. If you want colored foam, add a few drops of food coloring. Swirl the liquids to mix them. Here again, exact measurements are unnecessary.
  • When you’re ready for the reaction, pour about 15 ml (one tablespoon) of the iodide solution and stand back. Foam forms within seconds and rapidly escapes the tube.
  • After the reaction ends, wash the contents of the tray and tube down the drain with water.

Kid-Friendly Elephant Toothpaste

The classic chemistry demonstration is for chemistry educators, but the kid-friendly elephant toothpaste is safe enough for parents and children to perform and touch. Also, this version uses easy-to-find ingredients.

  • 3% household peroxide
  • 1-2 packet of dry yeast
  • Food coloring
  • Empty plastic soft drink bottle
  • Cookie sheet or pan to catch the foam (optional)

It’s not necessary to don safety gear for this reaction and it’s fine to use either a plastic or glass container. Just make sure the bottle has a narrow opening because this channels the foam and improves the effect.

Don’t worry about measuring ingredients precisely.

  • Pour about a cup of 3% hydrogen peroxide into an empty bottle. If the bottle opening is small, use a funnel.
  • Add a couple of squirts of dishwashing liquid and a few drops of food coloring to the bottle. Swish the liquid around to mix it.
  • In a separate container, mix together yeast with enough warm water that the liquid is easy to pour. A paper cup is a great container choice because you can pinch its rim and make pouring the yeast mixture easier. Wait a couple of minutes before proceeding so the yeast has a chance to activate.
  • When you’re ready, place the bottle on a cookie sheet or pan and pour yeast mixture into the bottle
  • Clean-up using warm, soapy water.

Is Elephant Toothpaste Safe to Touch?

You can handle the ingredients and the foam from the kid-friendly elephant toothpaste project. However, don’t touch either the ingredients or the foam from the classic giant elephant toothpaste. This is because the peroxide is concentrated enough to cause a chemical burn, while the giant toothpaste is hot enough to cause a thermal burn.

How Elephant Toothpaste Works

The basis for the elephant toothpaste display is the rapid decomposition of hydrogen peroxide (H 2 O 2 ). Hydrogen peroxide naturally decomposes into water and oxygen gas according to this chemical reaction:

2H 2 O 2 (l) → 2H 2 O(l) + O 2 (g)

In a decomposition reaction , a larger molecule breaks down into two or more smaller molecules. The normally slow progression of the reaction is why a bottle of peroxide has a shelf life . Exposure to light accelerates the decomposition, which is why peroxide comes in opaque containers.

Either potassium iodide or the enzyme catalase (found in yeast) acts as a catalyst for the reaction. In other words, either of these chemicals supercharges the reaction so it proceeds very quickly. Breaking chemical bonds in peroxide releases a lot of energy. Only a fraction of this energy goes back into forming chemical bonds making water and oxygen. What this means is that elephant toothpaste is an exothermic reaction or one that releases heat. How hot the reaction gets depends on how much peroxide you start with and how efficiently the catalyst speeds up the reaction. So, the classic version of the project gets hot enough to steam. The kid-friendly version of elephant toothpaste gets warm, but not hot enough to cause a burn.

Producing gas isn’t enough to make a foamy volcano. Adding liquid soap or dishwashing detergent to the mixture traps the gas bubbles. Normally, the reaction doesn’t have much color. Using food coloring makes the foam more interesting. Depending on your choice of colors, it also makes the foam resemble toothpaste.

  • Dirren, Glen; Gilbert, George; Juergens, Frederick; Page, Philip; Ramette, Richard; Schreiner, Rodney; Scott, Earle; Testen, May; Williams, Lloyd. (1983).  Chemical Demonstrations: A Handbook for Teachers of Chemistry. Vol. 1.  University of Wisconsin Press. Madison, Wisconsin. doi:10.1021/ed062pA31.2
  • “ Elephant’s Toothpaste .”  University of Utah Chemistry Demonstrations . University of Utah.
  • Hernando, Franco; Laperuta, Santiago; Kuijl, Jeanine Van; Laurin, Nihuel; Sacks, Federico; Ciolino, Andrés (2017). “Elephant Toothpaste”.  Journal of Chemical Education . 94 (7): 907–910. doi: 10.1021/acs.jchemed.7b00040
  • IUPAC (1997). “Chemical decomposition”. Compendium of Chemical Terminology (the “Gold Book”) (2nd ed.). Oxford: Blackwell Scientific Publications. ISBN 0-9678550-9-8. doi: 10.1351/goldbook

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Elephant Toothpaste Science Experiment

Elephant Toothpaste anyone? Although elephants might not be too excited about the idea, your kids will be thrilled with the fun chemical reaction of this super simple science experiment.

With only a few common items that you probably already have at home, kids can see the quick and impressive results of the chemical reaction, feel the heat released from the process, and even play with the “elephant toothpaste” foam afterward.

Below you’ll find detailed and printable instructions, a materials list, a demonstration video, and an easy to understand explanation of why it works!

chemistry experiments elephant toothpaste

JUMP TO SECTION: Instructions | Video Tutorial | How it Works

Supplies Needed

  • 2 Tablespoons Warm Water
  • 1 Teaspoon Yeast
  • Food Coloring
  • Hydrogen Peroxide – Either 3% or 6%
  • Empty Plastic Bottle
Helpful Tip: You can find the 3% at most stores, but you will need to either go to a Beauty Supply Store or order the 6% online. In the video I perform the experiment two ways. Once using the 3% peroxide and once using the 6%. It is often recommended to use 6% peroxide, but we actually preferred the reaction that happened with the 3% better.

Elephant Toothpaste Science Lab Kit – Only $5

chemistry experiments elephant toothpaste

Use our easy Elephant Toothpaste Science Lab Kit to grab your students’ attention without the stress of planning!

It’s everything you need to  make science easy for teachers and fun for students  — using inexpensive materials you probably already have in your storage closet!

Elephant Toothpaste Experiment Instructions

chemistry experiments elephant toothpaste

Step 1 –  Combine two tablespoons of warm water with one teaspoon of yeast and mix until the yeast is completely dissolved in the water. 

chemistry experiments elephant toothpaste

Step 2 –  Pour 1/2 cup hydrogen peroxide into the empty bottle. You’ll see here that we have two bottles. The bottle pictured on the left is being filled with 3% hydrogen peroxide while the bottle pictured on the right is filled with 6% hydrogen peroxide.

chemistry experiments elephant toothpaste

Step 3 –  Add a few drops of food coloring into the bottle. Take a moment to make a few observations. What happened when you added the drops of food coloring?

Note: This step is optional, but adding the color adds a fun element to the experiment. You’ll see that we used a different color of food coloring for each bottle. 

chemistry experiments elephant toothpaste

Step 4 – Next, add a squirt of dish soap into the bottle. Again, take a moment observe what happened. Did adding the dish soap appear to have any effect on the liquid already in the bottle?

chemistry experiments elephant toothpaste

Step 5 – Finally, pour the mixture of water and yeast into the bottle. Watch carefully and observe what happens. 

Helpful Tip: You may need to gently swirl the bottle in order to get the items to completely combine. We had to do that for the 6% hydrogen peroxide.

Sit back and watch what happens. Write down your observations as you watch the experiment. Can you describe what happens when you add the water and yeast mixture to the bottle. If you are using both the 3% and the 6% hydrogen peroxide like we are, is there a difference between what happens? 

Wondering what caused the liquid to react that way? Find out the answer in the how does this experiment work section below.

Video Tutorial

Watch the Elephant Toothpaste Science Experiment Step by Step Instructions Video

How Does the Elephant Toothpaste Science Experiment Work

This experiment shows a very impressive and fast chemical reaction! Hydrogen peroxide is a combination of hydrogen and oxygen (H2O2). In this experiment, yeast is a catalyst that helps release oxygen molecules from the hydrogen peroxide solution.

A catalyst is a material that increases the rate of a reaction without itself being consumed

The release of oxygen molecules in this experiment happens FAST! The foam created in this chemical reaction is made up of very tiny oxygen bubbles. These bubbles result when hydrogen peroxide (H2O2) is broken down by the yeast into water (H2O) and oxygen (O2).

During the reaction, feel the bottle. It will feel warm to the touch because it is an exothermic reaction .

An exothermic reaction is a chemical reaction that releases energy through light or heat (in this case, heat).

The reaction will continue and foam will be produced until all of the hydrogen peroxide (H2O2) has been broken down into water (H2O) and oxygen (O2).

**Have fun playing with the foam after the experiment is over! It is safe to touch because all that foam is just soap, water and oxygen. Let your kids have some fun with the foam too. Just be sure to have a towel handy!

Other Ideas to Try

Try adding more or less yeast when doing the experiment again. How does this affect the amount of foam produced?

Try the experiment again, but change the size of the bottle. How does this affect the amount of foam produced?

I hope you enjoyed the experiment. Here are some printable instructions:

Elephant Toothpaste Science Experiment

  • Hydrogen Peroxide – Either 3% or 6%

Instructions

  • Combine two tablespoons of warm water with one teaspoon of yeast and mix until the yeast is completely dissolved in the water.
  • Pour 1/2 cup hydrogen peroxide into the empty bottle
  • Add a few drops of food coloring into the bottle
  • Add a squirt of dish soap into the bottle
  • Pour the mixture of water & yeast into the bottle
  • Sit back and watch what happens

Elephant Toothpaste Experiment Steps

Reader Interactions

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February 7, 2016 at 8:13 pm

do it was a cemical reacin

' src=

February 8, 2016 at 1:15 pm

Correct! The yeast is mixed with the hydrogen peroxide causes a chemical reaction.

Which version did you like better, the one that reacted fast or the one that reacted slow?

' src=

May 17, 2018 at 12:31 pm

Looks amazing! What is the chemical reaction?

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March 24, 2019 at 10:40 am

I’m am going to do that science project and this was super helpful thanks so much

March 24, 2019 at 10:46 am

Thank you so much I am doing this science project and I don’t know what to do and now I know what to do j

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September 1, 2019 at 8:09 am

Did you try using more yeast or more 3 % hydrogen peroxide?

Found this explanation: “The yeast acted as a catalyst; a catalyst is used to speed up a reaction. It quickly broke apart the oxygen from the hydrogen peroxide. Because it did this very fast, it created lots and lots of bubbles. Did you notice the bottle got warm. Your experiment created a reaction called an Exothermic Reaction – that means it not only created foam, it created heat! The foam produced is just water, soap, and oxygen ” The yeast is not reacting with the hydrogen peroxide. Rather it is acting as a catalyst. A catalyst is a substance that causes a chemical reaction to speed up but is not “used” up during the reaction. Hydrogen Peroxide: H2O2 hydrogen and oxygen Baker’s Yeast: C19H14O2 carbon, hydrogen and oxygen

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August 18, 2020 at 2:25 pm

My son did this experiment which was great! The only problem was that he played with the foam afterwards and his hands got super itchy. Can you be allergic to the yeast? Just a warning in case this happens to anyone else.

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August 11, 2023 at 8:49 pm

Yeah I did this with potassium iodide and 25% hydrogen peroxide in a lab and my fingers went a little white on the tips (I had gloves on after this happened) they did get itchy and I think it was just the hydrogen peroxide bleaching the skin. This is an exothermic reaction so it can get hot not sure how hot with yeast.

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January 25, 2022 at 11:25 am

It did not work for me and i don’t know why maybe caused i used rubbing alcohol insted

' src=

December 6, 2023 at 3:55 pm

good helpful and fun

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Elephant Toothpaste Experiment: How-To Plus Free Worksheet

Heat things up with this larger-than-life science lesson.

Tablet with elephant toothpaste experiment materials featured on screen next to a worksheet.

Who knew toothpaste could be so fun? While no actual toothpaste is produced, this experiment is an exciting and hands-on way to bring several science lessons to life. You’ll want to use some caution when performing it with kids. Some of the chemicals used can be irritating and the substance produced is hot, so you won’t want to actually brush anyone’s teeth with the foam, as tempting as that may be! Read on to see how to do the Elephant Toothpaste Experiment, and  fill out the form on this page  to grab your free recording sheet.

How does the Elephant Toothpaste Experiment work?

This experiment works through a chemical reaction that results from a catalyst (potassium iodide, aka yeast) being introduced into a mixture of hydrogen peroxide and dish soap. The hydrogen peroxide is decomposed into water and oxygen and the catalyst speeds up the reaction, forcing the oxygen into the soap bubbles. The resulting effect is the substance quickly pouring up and out of the container.

What does the Elephant Toothpaste Experiment teach?

This experiment is a crowd-pleaser, but it also serves to teach kids a lot. The concept of a catalyst speeding up a reaction is demonstrated in an obvious and exciting way as the introduction of the yeast forces the foam to explode up and out of the bottle. It also teaches kids about exothermic reactions as the foam coming out of the bottle is hot. Additionally, kids get to see a decomposition reaction as the rapid decomposition of hydrogen peroxide results in the release of oxygen gas.

Is there an Elephant Toothpaste Experiment video?

This video from teacher Hilary Statum will give you the step-by-step instructions for making your own Elephant Toothpaste.

Materials Needed

To do the experiment, you will need:

  • 16-oz. empty plastic soda bottle
  • Very warm water
  • 3% hydrogen peroxide (6% is better, if available)
  • Measuring cups
  • Measuring spoons
  • Safety glasses
  • Safety gloves
  • Funnel or measuring cup with a lip
  • Food coloring

Our free recording sheet is also helpful— fill out the form on this page to get it!

Elephant Toothpaste Experiment steps:

1. place the bottle on a large tray and put on your safety goggles and gloves., 2. mix 1 tablespoon of yeast into 3 tablespoons of warm water until you achieve a creamy consistency. place in a small cup and set to the side., 3. use a funnel or measuring cup to pour half a cup of hydrogen peroxide into the bottle., 4. add a bit of food coloring. for a solid color, add directly into the bottle. for stripes, squirt it with the pipettes so it trickles down the sides of the inside of the bottle., 5. add approximately 1 tablespoon of dish soap to the hydrogen peroxide., 6. use a funnel or measuring cup to add the yeast mixture to the bottle., 7. step back and watch the explosion, grab our free elephant toothpaste experiment worksheet.

Elephant toothpaste experiment worksheet.

Fill out the form on this page to get your worksheets. The first worksheet asks kids to make a prediction about what they think will happen. They can use the provided spaces to draw or write their predictions and observations. The second worksheet lists questions for students to answer about the experiment.

Additional Reflection Questions

Elephant toothpaste experiment worksheet with student questions.

  • Why do we add the yeast to the water?
  • What do you think would happen if we added more dish soap?
  • What do you think would happen if we added more yeast to the mixture?
  • What is the liquid that is left in the bottle?
  • Describe the reaction that occurs. How long does it last?

Can this experiment be done for a science fair?

Yes! If you want to do the Elephant Toothpaste Experiment for a science fair, we recommend switching up some of the variables. For example: Does the type or shape of the container matter? Does the type of dish soap matter? Does adding more yeast change the reaction? Form a hypothesis about how changing the variables will impact the experiment. Good luck!

Looking for more experiment ideas? Check out our  big list of experiment ideas here.

Plus, be sure to  subscribe to our newsletters  for more articles like this., you might also like.

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STEAM Powered Family

Elephant Toothpaste

Create a giant, foaming reaction that will astound kids with this Elephant Toothpaste Science Experiment. This simple science experiment is a another erupting science that thrills kids of all ages. Students will learn about chemical reactions that are exothermic. Go beyond baking soda and vinegar reactions and try Elephant Toothpaste.

How To Make Elephant Toothpaste

What you will discover in this article!

Elephant Toothpaste Experiment

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This classic science experiment has been wowing kids for generations. At the science centre or on TV you have probably seen spectacular elephant toothpaste experiments that shoot up feet into the air. Here we provide you with a simple version of Elephant Toothpaste using items from your home.

Check out our video set to music demonstrating Elephant Toothpaste in action!

Watch this fun experiment in action. If you can’t see the video, please turn off your adblockers as they also block our video feed. You can also find this video on the STEAM Powered Family YouTube Channel .

What is Elephant Toothpaste?

Elephant toothpaste is a safe, fantastic foamy science experiment using Hydrogen Peroxide and Yeast. When done in a beaker or bottle that narrows at the top, it oozes out like a great big tube of toothpaste. Perfectly sized for an elephant!

Depending on where you are in the world, Elephant’s Toothpaste has also been called Devil’s Toothpaste, Demon’s Toothpaste

It packs huge wow factor with the kids. It also provides a sensory experience while teaching kids important scientific principles such as:

Chemistry Catalyst Surface tension Exothermic reaction Temperature Liquid/Gas (states of matter) Mixture

Is Elephant Toothpaste Safe?

Elephant Toothpaste is safe when using 3% hydrogen peroxide! The foam is composed of soap, oxygen and water. It makes a great sensory science experience.

NOTE: Although we call this toothpaste, it is not toothpaste and should not be tasted. Ensure appropriate supervision is provided at all times.

Elephant Toothpaste Ingredients

250mL Glass Erlenmeyer Flask or an empty plastic bottle Dry yeast Warm water Liquid dish soap 3% hydrogen peroxide * Liquid food colouring Measuring cups Measuring spoons Safety goggles or glasses Large tub or tray (something with a lip) Funnel (optional – can help kids with pouring) Infrared non-contact thermometer (optional, helps with measuring the exothermic reaction)

*Higher percentage concentration hydrogen peroxide are dangerous and can cause skin irritation. Ensure you are using 3% with your kids in this experiment.

Elephant Toothpaste Experiment

Pick a place to do this experiment that is easy to clean up. If you do this in a nice big, high lipped tray that should contain most of foam, but in my experience kids love to play and touch the foam, so things can get messy quickly. Have your child put on safety glasses and clothes they don’t mind splashing.

Start by mixing one packet (about 1 tablespoon) of yeast with 1/4 cup warm water in cup to create the first mixture . Let it sit for about 30 seconds while you prep the beaker.

Into the flask add 150 mL of Hydrogen Peroxide, a tablespoon of dish soap (after a few tries we just used a squirt of dish soap, it doesn’t need to be exact), and about 15 drops of food coloring (if desired).

If you are taking temperatures, take a temperature of each of the liquids now.

Now pour the yeast mixture into the hydrogen peroxide solution.

Watch the reaction!

If you are doing temperatures, make sure you take a temperature read during the reaction too!

Elephant Toothpaste Reaction

Elephant Toothpaste Science

The main reactor in this experiment is 3% Hydrogen Peroxide a liquid made from hydrogen atoms and oxygen atoms (chemical formula H 2 O 2 ), which is used in first aid as an antiseptic. Normally it comes in a dark bottle because H 2 O 2 or hydrogen peroxide breaks down in light, turning into oxygen (O 2 ) and water (H 2 O). Normally this reaction happens very slowly, but we can speed it up with a little science!

Yeast, which we use to make bread , is an organism that contains a special chemical called catalase that can act as a catalyst to help break down hydrogen peroxide. This means that if you mix yeast with hydrogen peroxide, the hydrogen peroxide will rapidly break down into liquid water and oxygen gas . During this process energy is also released in the form of heat, which is known as an exothermic reaction .

Elephant Toothpaste Chemical Formula

Here is the chemical reaction for Elephant Toothpaste: 2 H 2 O 2 (aq) → 2 H 2 O (l) + O 2 (g)

Those gas bubbles would normally pop and disappear, but by adding a bit of dish soap, we can trap lots of bubbles thanks to an increase in surface tension . We explore this scientific concept in our Magic Milk experiment . This means the foam is simply soap, oxygen and water. Perfectly safe to touch and explore!

The result is a spectacular eruption of foam known as Elephant Toothpaste.

Elephant Toothpaste Extension Activities

There are a few things you can do to dig deeper into this reaction:

  • Use an infrared no touch thermometer to measure the exothermic reaction.
  • Why stop at a single color? Make multi-colored Elephant’s Toothpaste by dropping different colors of liquid food coloring down the inside of the bottle rather than mixing it into the solution. The result will be colored foam stripes.
  • Try different shaped containers to see how the reaction changes. Maybe a plastic soda bottle or a mason jar with a wider neck. How does the experiment results change?
  • Alter the ratio of yeast to hydrogen peroxide. What if you increase to one cup of hydrogen peroxide? What effect does it have on the reaction?
  • What happens if you remove the dish soap?
  • Visit your local science center and ask when they will be doing their next Elephant Toothpaste demonstration. They use a different reaction that produces spectacular results with lots of foam!
  • Only do this next extension with responsible middle or high school students, and under direct adult supervision – Visit the hair supply store and get 6% or higher hydrogen peroxide. How does the higher concentration hydrogen peroxide change the results? ( Hint … bigger and messier!)

Don’t forget to try our Valentine’s Day Science Experiment Blooming Roses Elephant Toothpaste !

Valentine's Day Science Experiment - Blooming Rose Elephant Toothpaste

How To Clean Up Elephant Toothpaste

Once you are done with the experiment and playing with the foam, you can wash everything up in the sink . In fact, it cleans up easily thanks to the soap.

Sensory Experience

While doing this experiment ensure you discuss the sensory inputs provided by this fantastic foaming science.

First they will experience the sense of smell from the yeast. Have the kids discuss this smell and what it reminds them of.

Next we have the sensory experience of touch . This is done in two ways. Have them touch the sides of the beaker before and after the experiment starts. This way they can experience the exothermic reaction (the beaker will feel warm, but as long as you are using 3% hydrogen peroxide, it is not hot). You can reinforce this exploration by using a non-contact thermometer. The second touch experience is with the foam. The foam is perfectly safe to touch. As we explored in the science portion, the foam is just soap, water and oxygen.

Elephant toothpaste is a fantastic sensory science experience.

Elephant Toothpaste Science Experiment

Elephant Toothpaste Classic Science

Creating Elephant Toothpaste is a quick and easy science experiment that can be easily adjusted to suit the learning needs of upper elementary through middle school. It has great WOW factor, and kids around the world have loved creating these foamy fountains we affectionately call, Elephant Toothpaste.

Enjoy this classic science experiment!

Elephant Toothpaste Experiment for Kids

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How to Make Elephant Toothpaste

Last Updated: July 23, 2024

This article was co-authored by Bess Ruff, MA . Bess Ruff is a Geography PhD student at Florida State University. She received her MA in Environmental Science and Management from the University of California, Santa Barbara in 2016. She has conducted survey work for marine spatial planning projects in the Caribbean and provided research support as a graduate fellow for the Sustainable Fisheries Group. This article has been viewed 1,069,254 times.

Making elephant toothpaste is an easy and fun science experiment that you can do with your kids at home or with students in the lab. It is the result of a chemical reaction that creates a large amount of oozing foam. The movement of the foam looks like toothpaste squirting out of a tube while the amount of foam usually is enough for an elephant to brush its teeth.

Please be aware the concentrated hydrogen peroxide (greater than the household 3%) is a strong oxidizer. It may bleach skin and could possibly cause burns. Do not attempt without proper safety precautions and the presence of an adult. Also, the lab version includes potassium iodide, which can reach hot temperatures. If you are at home, we suggest you use water and dry yeast instead. Have fun with it, but be safe!

Ingredients

Home version.

  • 1 ⁄ 2 cup (120 ml) of 6% hydrogen peroxide liquid
  • 1 tablespoon (25.5 g) of dry yeast
  • 3 tablespoons (44 ml) of warm water
  • Liquid dish washing soap
  • Food coloring
  • Plastic bottles of all shapes

Lab version

  • Liquid detergent
  • 30% hydrogen peroxide (H 2 O 2 )
  • Saturated solution of potassium iodide (KI)
  • Graduated cylinder
  • Food coloring (optional)

Preparing for the Experiment

Step 1 Look around your home for all the available resources.

  • You can use 3% hydrogen peroxide for the experiment, though it may not produce as much foam as a 6% concentration.

Conducting the Home Version Experiment

Step 1 Mix 3 US tbsp (44 ml) of warm water with the yeast and let it sit.

  • Depending on your child’s age, you can have them use a fun spoon and stirring tool. You can also have the put on goggles and a lab coat. Kid safety goggles can be found at your local hardware store.
  • Check the yeast packaging to see how hot the water needs to be.

Step 2 Combine dish soap, food coloring, and 1⁄2  c (120 ml) of hydrogen peroxide in a bottle.

  • If your child is too young, have them squeeze the dish soap and food coloring into the bottle. You can also add glitter to make it more fun. Make sure the glitter is plastic and not metal-based because peroxide should not be used with metal. [4] X Research source
  • Stir the mixture yourself or have your child do it if old enough. Be sure that the hydrogen peroxide is not spilled.

Step 3 Pour the yeast mix through a funnel into your bottle.

  • The fungi in the yeast immediately cause the hydrogen peroxide to decompose and strip off an extra oxygen molecule. The yeast acts as a catalyst as it causes the hydrogen peroxide molecule to release an oxygen molecule. The stripped off oxygen molecule takes the form of a gas and once it hits the soap it creates fluffy foam bubbles, while the rest stays as water. The gas looks for an escape route and the foam “toothpaste” gushes out of the bottle. [6] X Research source
  • Make sure the yeast and hydrogen peroxide are mixed well for optimum effect.

Step 4 Change the size and shape of the bottle.

  • With a regular soda bottle and 3% hydrogen peroxide, you will probably get a cascading effect like a chocolate fountain.

Step 5 Feel the heat.

Adjusting the Experiment for a Lab Version

Step 1 Put on gloves and goggles.

Expert Q&A

Bess Ruff, MA

  • You might notice that the reaction produces heat. That's because the chemical process is exothermic, meaning that it releases energy. Thanks Helpful 12 Not Helpful 0
  • Keep your gloves on when disposing of the elephant toothpaste. You can dump both the foam and the liquid down the drain. Thanks Helpful 5 Not Helpful 5
  • Hydrogen peroxide (H 2 O 2 ) naturally breaks down into water (H 2 ) and oxygen over time. But you can speed up the process by adding a catalyst. And as the hydrogen peroxide releases a lot of oxygen at once in the presence of detergent, millions of little bubbles form quickly. Thanks Helpful 0 Not Helpful 0

Tips from our Readers

  • You can use any type of liquid soap, but don’t use antibacterial soap if you use yeast because the soap will kill the yeast.

chemistry experiments elephant toothpaste

  • Elephant toothpaste can stain! Thanks Helpful 19 Not Helpful 5
  • The foam will overflow suddenly and quickly, especially in the chemistry lab version. Ensure this experiment is conducted on a washable, stain-resistant surface, and do not stand anywhere near the bottle or cylinder when it foams. Thanks Helpful 14 Not Helpful 3
  • The resulting substance is called elephant toothpaste only because of its appearance. Don't put it in your mouth or swallow it. Thanks Helpful 16 Not Helpful 4
  • This experiment cannot be done safely without goggles and gloves. Thanks Helpful 12 Not Helpful 10

Things You'll Need

  • Safety goggles
  • Disposable gloves
  • Plastic soda bottle
  • Tall graduated cylinder
  • Liquid or powdered detergent
  • Saturated solution of potassium iodide
  • food coloring (optional)

You Might Also Like

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  • ↑ https://health.clevelandclinic.org/what-is-hydrogen-peroxide-good-for/
  • ↑ http://www.funathomewithkids.com/2013/08/fun-science-experiment-for-kids.html
  • ↑ https://sciencebob.com/fantastic-foamy-fountain/
  • ↑ https://www.scientificamerican.com/article/make-elephant-toothpaste/

About This Article

Bess Ruff, MA

To make elephant toothpaste, mix 3 tablespoons of warm water with 1 tablespoon of yeast in a bowl. Next, add dish soap, food coloring, and 1/2 cup of hydrogen peroxide in a bottle and mix the ingredients thoroughly. Then, pour the yeast mixture through a funnel into your bottle. Quickly stand back, remove the funnel, and watch your mixture erupt into a fluffy foam! For tips on adjustments you can make to get other effects, read on! Did this summary help you? Yes No

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chemistry experiments elephant toothpaste

chemistry experiments elephant toothpaste

How To Make Elephant Toothpaste

elephant toothpaste

What is elephant toothpaste?

Elephant toothpaste is the foamy substance formed by rapid decomposition of hydrogen peroxide in the presence of household dish soap. This experiment is also known as the “marshmallow experiment” due to the fluffy foam it produces! Since it’s a simple experiment with easily obtainable ingredients, it’s a very popular class demonstration/party trick for kids.

The basic principle of the reaction is this: hydrogen peroxide (H 2 O 2 ) decomposes over time, forming water and oxygen (H 2 O + O 2 ) (if you’d like a refresher on decomposition reactions, click here !). Below is the full balanced reaction.

2H 2 O 2 (aq) -> 2H 2 O (l) + O 2 (g)

A catalyst speeds up this reaction. The oxygen combined with the dish soap is what creates the massive amounts of foam!

Elephant Toothpaste Ingredients

  • 3% hydrogen peroxide
  • Dish washing soap
  • Catalyst- can be yeast solution (dry yeast in warm water), potassium permanganate (dissolved in a small amount of water), manganese dioxide, or potassium iodide
  • Container – could be a beaker, plastic bottle, graduated cylinder- whatever chemistry lab glassware you’d like to use!
  • Food coloring (optional)
  • A nice, easy-to-clean space

Elephant Toothpaste Recipe

  • Pour ½ cup of peroxide into your ‘toothpaste’ container.
  • Add a generous amount of dish soap.
  • If you want to add color, now is the time. Add it directly to the peroxide for a solid color, or let it gently drip down the sides of the container to create stripes!
  • Add your catalyst.
  • Enjoy the bubbles!

What if I want a bigger foam-splosion?

You can achieve a more dramatic reaction in one of two ways. One- use more of your catalyst. This will speed up the reaction and cause oxygen to be released faster. Two- use a more concentrated peroxide. While 3% is the most readily commercially available peroxide, it is possible to get concentrations of up to 50%. When you use more concentrated peroxide, more oxygen will be released in the reaction. As a result, you’ll end up with a much more dynamic reaction!

However, exercise extreme caution if you choose to use highly concentrated peroxides! Hydrogen peroxide is extremely corrosive, and could cause serious burns if mishandled. If you’re conducting this experiment with a younger audience (or volunteer!) it might be better to stick with a safe 3%. If you do choose to use a more concentrated peroxide, it might be better to start with a smaller volume at first, and use less catalyst so the reaction proceeds at a controlled rate.

People who want a more dramatic reaction generally use 30% hydrogen peroxide. We don’t recommend using a higher percentage than that, and be sure to wear gloves.

Choosing a catalyst

Yeast will work as a catalyst, and it is safe and easily available. However, the reaction is not overly dramatic. The best choice is potassium iodide or sodium iodide, as it does not stain like manganese dioxide or potassium permanganate. Potassium iodide is also safer to use than potassium permanganate, which is a very strong oxidizing agent. Although safer, it is still recommended that you avoid contacting potassium iodide with the skin or eyes, as it is mildly toxic.

Can I touch the toothpaste?

In general, yes, but be cautious! When you use higher concentrations or an excessive amount of peroxide, it is possible to have some unreacted peroxide still in the foam, and this could cause serious burns. This reaction is also exothermic, meaning the flask will be hot to touch after the reaction takes place. Visit our safety notes page for more safety information.

That’s really all there is to it! If you’d like to see this experiment in action, click here to see the elephant toothpaste tips and tricks video on our channel. Good luck!

Further Reading

The element iodine What is oxidation What is titration Phase diagrams explained

August 1, 2019

Make Elephant Toothpaste

A bubbly science project from Science Buddies

By Science Buddies & Ben Finio

chemistry experiments elephant toothpaste

Squeeze some science: Use a little kitchen chemistry to make a fountain of "toothpaste" almost big enough for an elephant's brush!

George Retseck

Key Concepts Chemistry Biology Reaction Catalyst Surface tension

Introduction Create a giant foaming reaction, and use science to wow your friends with this classic activity. With just a few ingredients you can make something that looks like foamy toothpaste being squeezed from a tube—but so big that it looks almost fit for an elephant!

Background You might be familiar with hydrogen peroxide as an antiseptic used to clean cuts and scrapes, which it does by killing bacteria. But what is it? It is a liquid made from hydrogen atoms and oxygen atoms (its chemical formula is H 2 O 2 ). It is available in different strengths, or concentrations. You usually find it in a 3 percent concentration (although higher concentrations are available, they are more dangerous and must be handled carefully). It also breaks down when exposed to light, which is why it usually comes in dark brown bottles. 

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When hydrogen peroxide breaks down, it turns into oxygen (O 2 ) and water (H 2 O). Normally this breakdown happens very slowly. But you can make that reaction happen faster! How? By adding a catalyst. Yeast is an organism that contains a special chemical called catalase that can act as a catalyst to help break down hydrogen peroxide. Catalase is present in almost all living things that are exposed to oxygen, and it helps them break down naturally occurring hydrogen peroxide. 

This means that if you mix yeast with hydrogen peroxide, the hydrogen peroxide will rapidly break down into water and oxygen gas. The oxygen gas forms bubbles. These bubbles would usually escape from the liquid and pop quickly. But adding a little dish soap provides additional surface tension, allowing the bubbles to get trapped and creating lots of foam. This foam looks like a giant squeeze of toothpaste—almost big enough for an elephant!

Empty plastic bottle

Dry yeast (found in the baking section of the grocery store)

Liquid dish soap

3% hydrogen peroxide

Measuring cups 

Measuring spoons

Safety glasses

Large tub or tray to catch the foam 

Location for the activity that can tolerate spills (of hydrogen peroxide as well as possibly food coloring), such as a kitchen or bathroom—or an outdoor location 

Liquid food coloring (optional)

Different-shaped bottles or glasses (optional) 

Preparation

Put on your safety glasses to do this activity because hydrogen peroxide can irritate your eyes. (Note: although the product of this activity resembles toothpaste, it is not toothpaste, so do not attempt to use it!)

Gather your materials in the location where you plan to do your activity. Place your plastic bottle on the tray or tub so that it is easy to clean up all the foam.

Measure 1/2 cup of hydrogen peroxide, and carefully pour it into the bottle.

Add a big squirt of dish soap into the bottle, and swirl gently to mix.

If you want to make your foam a single color, add a few drops of food coloring directly into the hydrogen peroxide, and swirl the bottle gently to mix. If you want to give your foam stripes like some toothpastes, put the drops along the inside rim of the bottle’s mouth. Let them drip down the inside of the bottle, but do not mix. 

In a measuring cup mix together one tablespoon of yeast and three tablespoons of warm water. Stir for about 30 seconds. 

Pour the yeast mixture into the bottle then quickly step back, and watch your reaction go! What happens? How long does the reaction last?

Extra: Try the activity without the dish soap. What happens? How was the result different?

Extra: Try the activity with different-shaped containers. What happens if you use a bottle with a narrower or wider neck—or a cylindrical drinking glass with no neck?

Observations and results You probably saw lots of bubbles and foam in this activity. What makes the foam appear? When the hydrogen peroxide comes into contact with the yeast it starts breaking down into water and oxygen. Oxygen is a gas and therefore wants to escape the liquid. The dish soap that you added to your reaction, however, traps these gas bubbles, forming a foam. The reaction continues as long as there is some hydrogen peroxide and yeast left. Once one of them runs out it stops making new foam. If you tried the activity without dish soap, the reaction probably will still made bubbles—but not foam. 

Cleanup Wash the foam down the sink when you are done with the activity. 

More to Explore Enzymes, Foam and Hydrogen Peroxide , from Science Buddies Exploring Enzymes , from Scientific American The Liver: Helping Enzymes Help You , from Scientific American Erupting Diet Coke with Mentos , from Science Buddies Yeast Alive! Watch Yeast Live and Breathe , from Scientific American STEM Activities for Kids , from Science Buddies 

This activity brought to you in partnership with Science Buddies

chemistry experiments elephant toothpaste

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chemistry experiments elephant toothpaste

Elephant Toothpaste: A Spectacular Science Experiment for Kids

Greetings, young scientists!

It’s Calie here, back with another thrilling science experiment that’s both educational and also incredibly fun to witness.

chemistry experiments elephant toothpaste

Today, we’re talking about the famous Elephant Toothpaste experiment – a visually stunning reaction that’ll have kids of all ages buzzing with excitement.

This experiment is a fantastic way to explore the concepts of catalysts and exothermic reactions, all while creating an impressive foam explosion reminiscent of toothpaste fit for an elephant!

What You Need:

  • 16-oz plastic soda bottle (or a similar container)
  • 1/2 cup of 20-volume hydrogen peroxide (This is a 6% solution, which is stronger than what’s usually found in first aid kits. You can purchase it at beauty supply stores or online.)
  • 1 Tablespoon of dry yeast
  • 3 Tablespoons of warm water
  • Liquid dish soap
  • Food coloring (optional, but makes it more visually fun)
  • A small cup (for mixing the yeast and water)
  • Safety goggles (Always protect your eyes, as hydrogen peroxide can irritate or burn.)

Instructions:

  • Prepare Your Workspace: Cover your work area with plastic sheets or newspapers for easy cleanup. Don’t forget to wear your safety goggles.
  • Mix Yeast and Water: In the small cup, mix the tablespoon of dry yeast with the three tablespoons of warm water. Stir for about 30 seconds until most of the yeast dissolves. This mixture will act as your catalyst.
  • Prepare the Bottle: Pour the 1/2 cup of 20-volume hydrogen peroxide into the plastic bottle. If you’re adding food coloring, now’s the time to put 8 drops into the bottle. Then, add a good squirt of liquid dish soap into the bottle and swirl gently to mix.
  • Start the Reaction: Pour the yeast and water mixture into the bottle with the hydrogen peroxide and quickly step back. Watch the foamy eruption!

What’s Happening?

As you witness the foam erupting from the bottle, you’re seeing science in action!

The yeast acts as a catalyst, accelerating the breakdown of hydrogen peroxide into water and oxygen gas. This rapid release of oxygen gas creates countless tiny bubbles, which get trapped in the liquid dish soap, forming the thick foam you see.

The warmth you feel from the bottle is due to the reaction being exothermic, meaning it releases heat.

This experiment, popularized during our extended time at home in 2020, not only offered a fantastic way for families to engage in learning together but also demonstrated how simple ingredients could create spectacular results.

For a step-by-step visual guide and to see the reaction in all its glory, check out this informative video: Elephant Toothpaste Experiment Video .

It’s a great way to prepare for your own experiment and ensure a successful and fun experience.

The Elephant Toothpaste experiment is a fun way to get talking about basic scientific principles like catalysts, reactions, and the properties of gases.

So, gather your materials, don your safety goggles, and get ready for an explosive learning adventure!

For more experiments like these, check out our main article “ 100 Easy Science Experiments For Kids To Do At Home “.

Stay curious and happy experimenting!

Warmly, Calie

chemistry experiments elephant toothpaste

Calie Herbst, Editor-in-Chief of Milwaukee With Kids, has spent over a decade combining her experiences as a parent of three to create a hub for Milwaukee’s family adventures.

Her decade-long teaching career in Milwaukee Public Schools and academic background, including a Master’s in Teaching from Marquette University and dual B.A.s in Sociology and Spanish from the University of Wisconsin – Madison, fuel her passion for inclusive and engaging family content.

Calie is also a recognized voice in local media, contributing to WISN Channel 12 News, WTMJ Wisconsin Morning News, Fox 6’s Real Milwaukee, and B93.3.

Discover more about Calie’s journey and editorial approach on her About Page  and Editorial Policy Page .

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

Science Experiment: Elephant Toothpaste for Kids

Science Grade School Kindergartners Preschoolers Bottles Experiment 11 Comments

Exciting elephant toothpaste science experiment for kids that is sure to bring amazement!

Perfect for your little scientist at home. Watch what will happen!

Exciting elephant toothpaste science experiment for kids that is sure to bring amazement! Perfect for your little scientist at home. Watch what will happen!

Get the FREE Week of Science Experiments

My daughters and I have done a lot of science experiments  over the years. There are so many to choose from!

We’ve tried color-changing milk , learned about what dissolves in water , and experimented with density in liquids . Just to name a few.

Recently, I was in the mood to do a science experiment  and asked my daughters which one they would like to do again.

I was (pleasantly) surprised they both said the same experiment: elephant toothpaste.

Not only did they both agree, but I already had all of the supplies on hand!

Make Elephant Toothpaste Experiment: Supplies Needed

How to make elephant toothpaste ingredients for this science experiment for kids

Elephant toothpaste recipe ingredients:

  • yeast packet (0.25 oz)
  • 1/2 c. 3% hydrogen peroxide
  • 3 Tbsp warm water
  • food coloring
  • 1/2 c measuring cup
  • empty water bottle
  • measuring spoon (1 Tbsp)
  • small spoon
  • safety glasses

How to Make Elephant Toothpaste Experiment for Kids

Once you have gathered all your supplies, you can follow the steps below. Which preschoolers can even assist with.

Place the empty water bottle in the cake pan. Put on safety glasses.

Hypothesize what will happen when you mix the ingredients together.

First pour 1/2 cup hydrogen peroxide into the empty bottle using a funnel.

measure out the peroxide

Get the FREE Science Experiments Download

Then squirt a small amount (about 1 Tbsp) of dish soap into the bottle.

Gently swirl the bottle to mix contents.

Squirt some dish soap in with the peroxide.

Then you can add some drops of food coloring. The more drops you add, the darker the color will be.

Gently swirl the bottle again to mix the contents.

We added yellow food coloring.

The kids hypothesized the yellow food coloring mixed with the green dish soap would create blue elephant toothpaste.

It didn’t. It was still yellow!

Add food coloring to your elephant toothpaste experiment mixture

Next empty the yeast packet into a small bowl.

And then add 3 Tbsps of warm water.

Now mix with a spoon until the yeast is completely dissolved. (My daughter said it looked like chocolate milk when it was ready.)

Your almost ready now to watch the elephant toothpaste for kids in action!

Combine active yeast and water.

Combine Everything!

Lastly, dump all the contents from the bowl into the bottle using the funnel. Remove the funnel quickly.

Have your kids mix all of the ingredients together to make elephant toothpaste.

Observe & Explore the Elephant Toothpaste with your Kids

Foam and bubbles should ooze out of the water bottle.

Feel the side of the bottle.

It should feel warm because heat is created. (Do not attempt to put any of it in your mouth.)

Elephant's toothpaste science experiment for kids results!

Did what you had predicted happen?

Clean up by pouring the foam down a sink with some water.

Download the Elephant Toothpaste Experiment for Kids Free Printable

It is convenient to have a science experiment in an easy-to-follow print-ready format.

So, below is an easy-to-read file with supplies and directions to make your own elephant toothpaste for kids.

Download and enjoy!

Elephant's toothpaste science experiment for kids!

What is the Scientific Method ?

My daughters fill out lab reports when we do science experiments for school.

But this science experiment was just for fun. No lab reports required!

With that being said, we still seemed to follow (at least most of) the scientific method.

  • Hypothesize

I did some online research with the kids to explain what had happened with the elephant toothpaste.

There were quite a few technical terms we discovered including “exothermic reaction” and “catalysts”.

Feel free to do your own research for more information.

In simplest terms, however, we learned the bubbles that were created contain oxygen. (They knew oxygen is something in the air we breathe.)

The dish soap helped to make the foam.

And the yeast  helped to make the bubbles and foam form faster.

We absolutely loved the elephant toothpaste science experiment for kids! We hope you do too.

What is your favorite science experiment?

Share with us in the comments!

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 .

More Hands on Kids Activities to Try

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peter dufield says

August 4, 2022 at 5:53 am

great really good, but adverts got in way

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Elephant toothpaste

If an elephant used toothpaste, this is probably what it'd look like! Learn about chemical reactions by watching this heat-producing mixture bubble and overflow for up to half an hour. The experiment comes from pages of the Nat Geo Kids book Try This! Extreme .

DON'T FORGET YOUR SAFETY EQUIPMENT: safety goggles, lab apron, nitrile gloves

Stand the soda bottle in a pan.

Insert funnel in neck of soda bottle.

Add ½ cup peroxide, detergent, and food coloring.

UM, DID YOU SEE THE WARNING ABOVE? Check it out again!

In measuring cup, beaker, or plastic cup, combine yeast and warm water. Combine with plastic spoon.

Pour yeast mixture into soda bottle and remove funnel.

WARNING: In case you missed it the first time, avoid touching or getting the chemicals on skin or clothing. And don't get too close, as heat and steam can be dangerous.

WHAT'S GOING ON

Hydrogen peroxide normally decomposes (breaks down into separate elements), and combining it with detergent and yeast (a catalyst) speeds up the process.

As the oxygen emanates from the reaction, it creates bubbles. The detergent speeds up the foaming. The reaction is "exothermic," meaning it produces heat as well as steam.

WARNING:  This experiment uses chemicals that can irritate skin and damage clothes, so make sure to use safety goggles, lab apron, and nitrile gloves. Avoid touching or getting the chemicals on skin or clothing. And don't get too close, as heat and steam can be dangerous.

Science Lab

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How to make elephant toothpaste

This is one to really sink your tusks into.

Dr Stuart Farrimond

Need some eye-opening and fun science experiments to try at home with family and friends? Here's one from our DIY Science special in issue 310 of BBC Focus magazine ( subscribe here ) .No specialist equipment is needed for this one, butjust remember to wash your hands after making elephant toothpasteand make sure that children are supervised by an adult.

To make elephant toothpaste you will need:

© Steve Sayers/The Secret Studio

  • Safety goggles (best to get a pair that completely seal your eyes so that notoothpaste gets underneath)
  • Washing-up liquid
  • Dried yeast (make sure that it is in date)
  • Food colouring
  • Empty 500ml plastic drinks bottle
  • 9% hydrogen peroxide, whichis a mild skin disinfectant that you can buy over the counter at pharmacies(Warning: hydrogen peroxide can irritate eyes and sensitive skin, so wear safety glasses and gloves. Do not swallow hydrogen peroxide or splash in eyes.)
  • Glycerine, which you can find in the baking section of the supermarket, or in bigger bottles at a pharmacy
  • This experiment is messy! Either work at a table that’s easy to clean, or head outside.

© Steve Sayers/The Secret Studio

  • Put on gloves and safety glasses.
  • Pour half a cupful of hydrogen peroxide into the bottle (more if you’re using a larger bottle).

© Steve Sayers/The Secret Studio

  • Pour in up to two tablespoons of glycerine.
  • You are going to be making toothpaste, so why not add some food colouring? I drizzled some orange food colouring down one side of the bottle and blue down the other.
  • Pour the (now activated) yeast into the bottle using the funnel.
  • Stand back as the bottle erupts with a thick foam that seems to just keep on going. It looks like toothpaste, but it’s definitely not for brushing teeth with!

© Steve Sayers/The Secret Studio

What's going on?

Elephant toothpaste isn’t toothpaste at all, but a foam of oxygen bubbles that have been ensnared by the washing-up liquid and thickened by the glycerine.

Chemically, hydrogen peroxide is made of two hydrogen atoms and two oxygen atoms (H 2 O 2 ). This makes it similar to water (H 2 O) but with an extra oxygen atom (O) – yet hydrogen peroxide is poisonous to living things, which is why we use it as a disinfectant, and why we keep it away from our mouths and eyes.

Yeast, however, carries a protective enzyme called catalase that destroys hydrogen peroxide. The moment the living yeast cells touch the liquid disinfectant, the enzymes go to work tearing the hydrogen peroxide molecules apart, into water and oxygen. The oxygen bubbles up vigorously to form a rapidly growing foam that erupts from the top of the bottle, such is the fervour of the reaction.

You can try this science demonstration with liver instead of yeast, as this organ also contains enzymes that destroy hydrogen peroxide.

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At-Home Science Experiments: Elephant's Toothpaste

Create foamy fun with your kids with this diy science project.

The foam your kids will create in this at-home science experiment resembles toothpaste being squeezed from a tube — just be sure they don't get it in their mouth!

What You'll Need:

  • A clean 16-oz plastic soda bottle
  • 1/2 cup 20-volume hydrogen peroxide liquid (20-volume is a 6% solution; you can get this from a beauty supply store or hair salon)
  • 1 Tablespoon (one packet) of dry yeast
  • 3 Tablespoons of warm water
  • Liquid dishwashing soap
  • Food coloring
  • Safety goggles 

What to Do:

Note: Since foam will overflow, be sure to do this experiment on a washable surface, or place the bottle on a tray.

1. Hydrogen peroxide can irritate skin and eyes, so put on those safety goggles! An adult should carefully pour the hydrogen peroxide into the bottle.

2. Add 8 drops of your favorite food coloring into the bottle. 

3. Add about 1 tablespoon of liquid dish soap into the bottle and swish the bottle around a bit to mix it. 

4. In a separate small cup, combine the warm water and the yeast together and mix for about 30 seconds.

5. Now the adventure starts! Pour the yeast water mixture into the bottle (a funnel helps here) and watch the foaminess begin! 

What's Happening:

Foam is awesome! The foam is special because each tiny foam bubble is filled with oxygen. The yeast acted as a catalyst (a helper) to remove the oxygen from the hydrogen peroxide. Since it did this very fast, it created lots and lots of bubbles. Ask if your kids noticed the bottle got warm? The experiment created a reaction called an exothermic reaction , which means it not only created foam, it created heat! The foam produced is just water, soap, and oxygen, so you can clean it up with a sponge and pour any extra liquid left in the bottle down the drain.

The experiment can also be done with the hair care version of hydrogen peroxide, or the weaker pharmacy version, although the effect with the pharmacy version will be smaller. Readers should use safety goggles for any experiment, and should have adults read instructions on containers for safety precautions.

Activity courtesy of ScienceBob.com .

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Fantastic foamy fountain.

chemistry experiments elephant toothpaste

More science videos on Science Bob’s YouTube Channel

You will need.

  • A clean 16 ounce (473 ml) plastic soda bottle or a water bottle.
  • 20-Volume hydrogen peroxide liquid (20-volume is a 6% solution that is stronger than what you find in most pharmacies. It is typically used for lightening hair and is found at many beauty supply stores. You can use the 3% hydrogen peroxide found in pharmacies, but the reaction will be a bit smaller)
  • 1 Tablespoon (15ml –  one packet) of dry yeast
  • 3+ Tablespoons (15 ml) of warm water
  • Liquid dishwashing soap
  • Food coloring
  • Safety goggles

NOTE: The foam could overflow from the bottle, so be sure to do this experiment on a washable surface, or place the bottle on a tray.

CAUTION: The unreacted hydrogen peroxide can irritate skin and eyes. Read the safety information on the hydrogen peroxide bottle and be sure to wear safety goggles.

  • Use a funnel to carefully pour 3/4 cup (180 ml) of the hydrogen peroxide liquid into the bottle
  • Add about 10 drops of your favorite food coloring into the bottle.
  • Add about 1 tablespoon (15ml) of liquid dish soap into the bottle and swish the bottle around a bit to mix it.
  • In a separate small cup, combine the warm water and the yeast together and mix for about 30 seconds. It should be about the consistency of melted ice cream – add a bit more warm water if needed.
  • Now the adventure starts! Use the funnel to pour the yeast-water mixture into the bottle and watch the foaminess begin!

Can I touch the foam? The reaction typically breaks down the hydrogen peroxide so you are left with mostly just soapy water and yeast. There can, however, be un-reacted peroxide which could irritate skin and eyes. For that reason, it is recommended you do not touch the foam.

(If you use the 3% hydrogen peroxide found in most pharmacies, then the foam can be touched safely.)

How does it work?

Foam is awesome! The foam you made in this classic Elephant’s Toothpaste reaction is extra-special because each tiny foam bubble is filled with oxygen. The yeast acted as a catalyst; a catalyst is used to speed up a reaction.  It quickly broke apart the oxygen from the hydrogen peroxide. Because it did this very fast, it created lots and lots of bubbles. Did you notice the bottle got warm? Your experiment created a reaction called an Exothermic Reaction – that means it not only created foam, it created heat! The foam produced is just water, soap, and oxygen so you can clean it up with a sponge and pour any extra liquid left in the bottle down the drain.

This experiment is sometimes called “Elephant’s Toothpaste” because it looks like toothpaste coming out of a tube, but don’t get the foam in your mouth!

Make it an experiment:

The project above is a DEMONSTRATION. To make it a true experiment, you can try to answer these questions:

  • Does the amount of yeast change the amount of foam produced?
  • Will the experiment work as well if you add the dry yeast without mixing it with water?
  • Does the size of the bottle affect the amount of foam produced?

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10 Cool Chemistry Experiments

ThoughtCo / Hilary Allison

  • Projects & Experiments
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  • Periodic Table
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  • Ph.D., Biomedical Sciences, University of Tennessee at Knoxville
  • B.A., Physics and Mathematics, Hastings College

Chemistry is king when it comes to making science cool. There are many interesting and fun projects to try, but these 10 chemistry experiments might be the coolest.

Whether you want to witness color transformations with copper and nitric acid or create a foam spectacle with hydrogen peroxide and potassium iodide, there's something here to spark curiosity in everyone. There's even a famous chemical reaction that will emit blue light and a characteristic barking or woofing sound.

Copper and Nitric Acid

When you place a piece of copper in nitric acid , the Cu 2+ ions and nitrate ions coordinate to color the solution green and then brownish-green. If you dilute the solution, water displaces nitrate ions around the copper, and the solution changes to blue.

Hydrogen Peroxide with Potassium Iodide

Affectionately known as elephant toothpaste , the chemical reaction between peroxide and potassium iodide shoots out a column of foam. If you add food coloring, you can customize the "toothpaste" for holiday-colored themes.

Any Alkali Metal in Water

Any of the alkali metals will react vigorously in water . How vigorously? Sodium burns bright yellow. Potassium burns violet. Lithium burns red. Cesium explodes. Experiment by moving down the alkali metals group of the periodic table. 

Thermite Reaction

The thermite reaction essentially shows what would happen if iron rusted instantly, rather than over time. In other words, it's making metal burn. If the conditions are right, just about any metal will burn. However, the reaction usually is performed by reacting iron oxide with aluminum:

Fe 2 O 3  + 2Al → 2Fe + Al 2 O 3  + heat and light

If you want a truly stunning display, try placing the mixture inside a block of dry ice and then lighting the mixture.

Coloring Fire

 SEAN GLADWELL / Getty Images

When ions are heated in a flame, electrons become excited and then drop to a lower energy state, emitting photons. The energy of the photons is characteristic of the chemical and corresponds to specific flame colors . It's the basis for the flame test in analytical chemistry , plus it's fun to experiment with different chemicals to see what colors they produce in a fire.

Make Polymer Bouncy Balls

Who doesn't enjoy playing with bouncy balls ? The chemical reaction used to make the balls makes a terrific experiment because you can alter the properties of the balls by changing the ratio of the ingredients.

Make a Lichtenberg Figure

A Lichtenberg figure or "electrical tree" is a record of the path taken by electrons during an electrostatic discharge. It's basically frozen lightning. There are several ways you can make an electrical tree.

Experiment with 'Hot Ice'

Hot ice is a name given to sodium acetate, a chemical you can make by reacting vinegar and baking soda. A solution of sodium acetate can be supercooled​ so that it will crystallize on command. Heat is evolved when the crystals form, so although it resembles water ice, it's hot.

Barking Dog Experiment

The Barking Dog is the name given to a chemiluminescent reaction involving the exothermic combination of either nitrous oxide or nitrogen monoxide with carbon disulfide. The reaction proceeds down a tube, emitting blue light and a characteristic "woof" sound.

Another version of the demonstration involves coating the inside of a clear jug with alcohol and igniting the vapor. The  flame front proceeds down the ​bottle , which also barks.

Dehydration of Sugar

When you react sugar with sulfuric acid , the sugar is violently dehydrated. The result is a growing column of carbon black, heat, and the overwhelming odor of burnt caramel.

Easy Science Experiments

Want something less extravagant but still fun? These easy science experiments are doable with items you likely already have at home—from creating invisible ink with baking soda to making homemade ice cream in a plastic bag.

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  • Halloween Reaction or Old Nassau Reaction
  • How to Do the Color Change Chameleon Chemistry Demonstration

Moscow Tutors

Learn with us, moscow tutors science project for kids: elephant toothpaste, science experiment: elephant toothpaste.

chemistry experiments elephant toothpaste

This exciting science experiment works great in a discussion on reactions, as a demonstration, or as an actual experiment.  To use it as an experiment, perform it once with your child, then ask your child what might happen if you changed the amounts or left out an ingredient. Let her direct the experiment!  Also, the foam created is safe to touch.  It is simply water, oxygen gas, and soap, so if your child has no soap allergies, she can experience and experiment with the texture of the foam!

How to make Elephant Toothpaste:

** 2 Tablespoons warm water ** 1 teaspoon yeast

** 1/2 cup 6% hydrogen peroxide.    It is important to use at least 6%.   Y ou can use 8% or more (available on Amazon), or you can use Salon Care Professional Stabilized Formula.  20 Volume Clear Developer from Sally Beauty Supply works fine too. 3% from the grocery store will NOT work as well.  🙂 ** 4-5 drops food coloring ** squirt of dish soap

chemistry experiments elephant toothpaste

If you’re working with older kids, you may be interested in how it works:

The reaction is summarized by this formula: 2 H2O2  –>  2 H2O + 02.

Hydrogen peroxide (H2O2) naturally breaks down into water and oxygen.  It is stored in opaque containers to help slow down this process.  Catalase (an enzyme in all living things, including yeast) speeds up the reaction.  Dish soap catches the oxygen and makes bigger bubbles and the food coloring makes it look cool.  The foam and bottle feel warm because the reaction is exothermic–it releases energy as heat.

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Education Corner

68 Best Chemistry Experiments: Learn About Chemical Reactions

Photo of author

Whether you’re a student eager to explore the wonders of chemical reactions or a teacher seeking to inspire and engage your students, we’ve compiled a curated list of the top 68 chemistry experiments so you can learn about chemical reactions.

While the theories and laws governing chemistry can sometimes feel abstract, experiments bridge the gap between these concepts and their tangible manifestations. These experiments provide hands-on experiences illuminating the intricacies of chemical reactions, molecular structures, and elemental properties.

1. Covalent Bonds

Covalent Bonds

By engaging in activities that demonstrate the formation and properties of covalent bonds, students can grasp the significance of these bonds in holding atoms together and shaping the world around us.

Learn more: Covalent Bonds

2. Sulfuric Acid and Sugar Demonstration

Through this experiment, students can develop a deeper understanding of chemical properties, appreciate the power of chemical reactions, and ignite their passion for scientific exploration.

3. Make Hot Ice at Home

Making hot ice at home is a fascinating chemistry experiment that allows students to witness the captivating transformation of a liquid into a solid with a surprising twist.

4. Make a Bouncing Polymer Ball

Make a Bouncing Polymer Ball

This hands-on activity not only allows students to explore the fascinating properties of polymers but also encourages experimentation and creativity.

Learn more: Thought Co

5. Diffusion Watercolor Art

Diffusion Watercolor Art

This experiment offers a wonderful opportunity for students to explore the properties of pigments, observe how they interact with water, and discover the mesmerizing patterns and textures that emerge.

Learn more: Diffusion Watercolor Art

6. Exploding Baggie

Exploding Baggie

The exploding baggie experiment is a captivating and dynamic demonstration that students should engage in with caution and under the supervision of a qualified instructor.

Learn more: Exploding Baggie

7. Color Changing Chemistry Clock

Color Changing Chemistry Clock

This experiment not only engages students in the world of chemical kinetics but also introduces them to the concept of a chemical clock, where the color change acts as a timekeeping mechanism.

Learn more: Color Changing Chemistry Clock

8. Pipe Cleaner Crystal Trees

Pipe Cleaner Crystal Trees

By adjusting the concentration of the Borax solution or experimenting with different pipe cleaner arrangements, students can customize their crystal trees and observe how it affects the growth patterns.

Learn more: Pipe Cleaner Crystal Trees

9. How To Make Ice Sculptures

How To Make Ice Sculptures

Through this experiment, students gain a deeper understanding of the physical and chemical changes that occur when water freezes and melts.

Learn more: Ice Sculpture

10. How to Make Paper

How to Make Paper

Through this hands-on activity, students gain a deeper understanding of the properties of cellulose fibers and the transformative power of chemical reactions.

Learn more: How to Make Paper

11. Color Changing Chemistry

Color changing chemistry is an enchanting experiment that offers a captivating blend of science and art. Students should embark on this colorful journey to witness the mesmerizing transformations of chemicals and explore the principles of chemical reactions.

12. Gassy Banana

The gassy banana experiment is a fun and interactive way for students to explore the principles of chemical reactions and gas production.

Learn more: Gassy Banana

13. Gingerbread Man Chemistry Experiment

Gingerbread Man Chemistry Experiment

This hands-on activity not only introduces students to the concepts of chemical leavening and heat-induced reactions but also allows for creativity in decorating and personalizing their gingerbread creations.

Learn more: Gingerbread Man Chemistry Experiment

14. Make Amortentia Potion

How To Make Amortentia Potion

While the love potion is fictional, this activity offers a chance to explore the art of potion-making and the chemistry behind it.

Learn more: How to Make Amortentia Potion

15. Strawberry DNA Extraction

This hands-on experiment offers a unique opportunity to observe DNA, the building blocks of life, up close and learn about its structure and properties.

16. Melting Snowman

Melting Snowman

The melting snowman experiment is a fun and whimsical activity that allows students to explore the principles of heat transfer and phase changes.

Learn more: Melting Snowman

17. Acid Base Cabbage Juice

Acid Base Cabbage Juice

The acid-base cabbage juice experiment is an engaging and colorful activity that allows students to explore the pH scale and the properties of acids and bases.

By extracting the purple pigment from red cabbage leaves and creating cabbage juice, students can use this natural indicator to identify and differentiate between acidic and basic substances.

Learn more: Acid Base Cabbage Juice

18. Magic Milk

Magic Milk

The magic milk experiment is a mesmerizing and educational activity that allows students to explore the concepts of surface tension and chemical reactions.

By adding drops of different food colors to a dish of milk and then introducing a small amount of dish soap, students can witness a captivating display of swirling colors and patterns.

Learn more: Magic Milk

19. Melting Ice with Salt and Water

Melting Ice with Salt and Water

Through this hands-on activity, students can gain a deeper understanding of the science behind de-icing and how different substances can influence the physical properties of water.

Learn more: Melting Ice with Salt and Water

20. Barking Dog Chemistry Demonstration

Barking Dog Chemistry Demonstration

The barking dog chemistry demonstration is an exciting and visually captivating experiment that showcases the principles of combustion and gas production.

21. How to Make Egg Geodes

How to Make Egg Geodes

Making egg geodes is a fascinating and creative chemistry experiment that students should try. By using common materials like eggshells, salt, and food coloring, students can create their own beautiful geode-like crystals.

Learn more: How to Make Egg Geodes

22. Make Sherbet

Make Sherbet

This experiment not only engages the taste buds but also introduces concepts of acidity, solubility, and the chemical reactions that occur when the sherbet comes into contact with moisture.

Learn more: Make Sherbet

23. Hatch a Baking Soda Dinosaur Egg

Hatch a Baking Soda Dinosaur Egg

As the baking soda dries and hardens around the toy, it forms a “shell” resembling a dinosaur egg. To hatch the egg, students can pour vinegar onto the shell, causing a chemical reaction that produces carbon dioxide gas.

Learn more: Steam Powered Family

24. Chromatography Flowers

Chromatography Flowers

By analyzing the resulting patterns, students can gain insights into the different pigments present in flowers and the science behind their colors.

Learn more: Chromatography Flowers

25. Turn Juice Into Solid

Turn Juice Into Solid

Turning juice into a solid through gelification is an engaging and educational chemistry experiment that students should try. By exploring the transformation of a liquid into a solid, students can gain insights of chemical reactions and molecular interactions.

Learn more: Turn Juice into Solid

26. Bouncy Balls

Making bouncy balls allows students to explore the fascinating properties of polymers, such as their ability to stretch and rebound.

 27. Make a Lemon Battery

Creating a lemon battery is a captivating and hands-on experiment that allows students to explore the fundamentals of electricity and chemical reactions.

28. Mentos and Soda Project

The Mentos and soda project is a thrilling and explosive experiment that students should try. By dropping Mentos candies into a bottle of carbonated soda, an exciting eruption occurs.

29. Alkali Metal in Water

The reaction of alkali metals with water is a fascinating and visually captivating chemistry demonstration.

30. Rainbow Flame

The rainbow flame experiment is a captivating and visually stunning chemistry demonstration that students should explore.

31. Sugar Yeast Experiment

This experiment not only introduces students to the concept of fermentation but also allows them to witness the effects of a living organism, yeast, on the sugar substrate.

32. The Thermite Reaction

The thermite reaction is a highly energetic and visually striking chemical reaction that students can explore with caution and under proper supervision.

This experiment showcases the principles of exothermic reactions, oxidation-reduction, and the high temperatures that can be achieved through chemical reactions.

33. Polishing Pennies

Polishing pennies is a simple and enjoyable chemistry experiment that allows students to explore the concepts of oxidation and cleaning methods.

34. Elephant Toothpaste

The elephant toothpaste experiment is a thrilling and visually captivating chemistry demonstration that students should try with caution and under the guidance of a knowledgeable instructor.

35. Magic Potion

Creating a magic potion is an exciting and imaginative activity that allows students to explore their creativity while learning about the principles of chemistry.

36. Color Changing Acid-Base Experiment

Color Changing Acid-Base Experiment

Through the color changing acid-base experiment, students can gain a deeper understanding of chemical reactions and the role of pH in our daily lives.

Learn more: Color Changing Acid-Base Experiment

37. Fill up a Balloon

Filling up a balloon is a simple and enjoyable physics experiment that demonstrates the properties of air pressure. By blowing air into a balloon, you can observe how the balloon expands and becomes inflated.

38. Jello and Vinegar

Jello and Vinegar

The combination of Jello and vinegar is a fascinating and tasty chemistry experiment that demonstrates the effects of acid on a gelatin-based substance.

Learn more: Jello and Vinegar

39. Vinegar and Steel Wool Reaction

Vinegar and Steel Wool Reaction

This experiment not only provides a visual demonstration of the oxidation process but also introduces students to the concept of corrosion and the role of acids in accelerating the process.

Learn more: Vinegar and Steel Wool Reaction

40. Dancing Rice

Dancing Rice

The dancing rice experiment is a captivating and educational demonstration that showcases the principles of density and buoyancy.

By pouring a small amount of uncooked rice into a clear container filled with water, students can witness the rice grains moving and “dancing” in the water.

Learn more: Dancing Rice

41. Soil Testing Garden Science

Soil Testing Garden Science

Soil testing is a valuable and informative experiment that allows students to assess the composition and properties of soil.

By collecting soil samples from different locations and analyzing them, students can gain insights into the nutrient content, pH level, and texture of the soil.

Learn more: Soil Testing Garden Science

42. Heat Sensitive Color Changing Slime

Heat Sensitive Color Changing Slime

Creating heat-sensitive color-changing slime is a captivating and playful chemistry experiment that students should try.

Learn more: Left Brain Craft Brain

43. Experimenting with Viscosity

Experimenting with Viscosity

Experimenting with viscosity is an engaging and hands-on activity that allows students to explore the flow properties of liquids.

Viscosity refers to a liquid’s resistance to flow, and this experiment enables students to investigate how different factors affect viscosity.

Learn more: Experimenting with Viscosity

44. Rock Candy Science

Rock Candy Science

Rock candy science is a delightful and educational chemistry experiment that students should try. By growing their own rock candy crystals, students can learn about crystal formation and explore the principles of solubility and saturation.

Learn more: Rock Candy Science

45. Baking Soda vs Baking Powder

Baking Soda vs Baking Powder

Baking soda and baking powder have distinct properties that influence the leavening process in different ways.

This hands-on experiment provides a practical understanding of how these ingredients interact with acids and moisture to create carbon dioxide gas.

46. Endothermic and Exothermic Reactions Experiment

Endothermic and Exothermic Reactions Experiment

The endothermic and exothermic reactions experiment is an exciting and informative chemistry exploration that students should try.

By observing and comparing the heat changes in different reactions, students can gain a deeper understanding of energy transfer and the concepts of endothermic and exothermic processes.

Learn more: Education.com

47. Diaper Chemistry

Diaper Chemistry

By dissecting a diaper and examining its components, students can uncover the chemical processes that make diapers so effective at absorbing and retaining liquids.

Learn more: Diaper Chemistry

48. Candle Chemical Reaction

The “Flame out” experiment is an intriguing and educational chemistry demonstration that students should try. By exploring the effects of a chemical reaction on a burning candle, students can witness the captivating moment when the flame is extinguished.

49. Make Curds and Whey

Make Curds and Whey

This experiment not only introduces students to the concept of acid-base reactions but also offers an opportunity to explore the science behind cheese-making.

Learn more: Tinkerlab

50. Grow Crystals Overnight

Grow Crystals Overnight

By creating a supersaturated solution using substances like epsom salt, sugar, or borax, students can observe the fascinating process of crystal growth. This experiment allows students to explore the principles of solubility, saturation, and nucleation.

Learn more: Grow Crystals Overnight

51. Measure Electrolytes in Sports Drinks

The “Measure Electrolytes in Sports Drinks” experiment is an informative and practical chemistry activity that students should try.

By using simple tools like a multimeter or conductivity probe, students can measure the electrical conductivity of different sports drinks to determine their electrolyte content.

52. Oxygen and Fire Experiment

The oxygen and fire experiment is a captivating and educational chemistry demonstration that students should try. By observing the effects of oxygen on a controlled fire, students can witness the essential role of oxygen in supporting combustion.

53. Electrolysis Of Water

Electrolysis Of Water

The electrolysis of water experiment is a captivating and educational chemistry demonstration that students should try.

Learn more: Electrolysis Of Water

54. Expanding Ivory Soap

Expanding Ivory Soap

The expanding Ivory Soap experiment is a fun and interactive chemistry activity that students should try. By placing a bar of Ivory soap in a microwave, students can witness the remarkable expansion of the soap as it heats up.

Learn more: Little Bins Little Hands

55. Glowing Fireworks

Glowing Fireworks

This experiment not only introduces students to the principles of pyrotechnics and combustion but also encourages observation, critical thinking, and an appreciation for the physics and chemistry behind.

Learn more: Glowing Fireworks

56. Colorful Polymer Chemistry

Colorful Polymer Chemistry

Colorful polymer chemistry is an exciting and vibrant experiment that students should try to explore polymers and colorants.

By combining different types of polymers with various colorants, such as food coloring or pigments, students can create a kaleidoscope of colors in their polymer creations.

Learn more: Colorful Polymer Chemistry

57. Sulfur Hexafluoride- Deep Voice Gas

This experiment provides a firsthand experience of how the density and composition of gases can influence sound transmission.

It encourages scientific curiosity, observation, and a sense of wonder as students witness the surprising transformation of their voices.

58. Liquid Nitrogen Ice Cream

Liquid Nitrogen Ice Cream

Liquid nitrogen ice cream is a thrilling and delicious chemistry experiment that students should try. By combining cream, sugar, and flavorings with liquid nitrogen, students can create ice cream with a unique and creamy texture.

59. White Smoke Chemistry Demonstration

White Smoke Chemistry Demonstration

The White Smoke Chemistry Demonstration provides an engaging and visually captivating experience for students to explore chemical reactions and gases. By combining hydrochloric acid and ammonia solutions, students can witness the mesmerizing formation of white smoke.

60. Nitrogen Triiodide Chemistry Demonstration

Nitrogen Triiodide Chemistry Demonstration

The nitrogen triiodide chemistry demonstration is a remarkable and attention-grabbing experiment that students should try under the guidance of a knowledgeable instructor.

By reacting iodine crystals with concentrated ammonia, students can precipitate nitrogen triiodide (NI3), a highly sensitive compound.

61. Make a Plastic- Milk And Vinegar Reaction Experiment

Milk And Vinegar Reaction Experiment

Through the “Make a Plastic – Milk and Vinegar Reaction” experiment, students can gain a deeper understanding of the chemistry behind plastics, environmental sustainability, and the potential of biodegradable materials.

Learn more: Rookie Parenting

62. Eno and Water Experiment

This experiment not only introduces students to acid-base reactions but also engages their senses as they witness the visible and audible effects of the reaction.

63. The Eternal Kettle Experiment

By filling a kettle with alcohol and igniting it, students can investigate the behavior of the alcohol flame and its sustainability.

64. Coke and Chlorine Bombs

Engaging in this experiment allows students to experience the wonders of chemistry firsthand, making it an ideal choice to ignite their curiosity and passion for scientific exploration.

65. Set your Hand on Fire

This experiment showcases the fascinating nature of combustion and the science behind fire.

By carefully following proper procedures and safety guidelines, students can witness firsthand how the sanitizer’s high alcohol content interacts with an open flame, resulting in a brief but captivating display of controlled combustion.

66. Instant Ice Experiments

The Instant Ice Experiment offers an engaging and captivating opportunity for students to explore the wonders of chemistry and phase changes.

By using simple household ingredients, students can witness the fascinating phenomenon of rapid ice formation in just a matter of seconds.

67. Coke Cans in Acid and Base

Engaging in this experiment allows students to gain a deeper understanding of the chemical properties of substances and the importance of safety protocols in scientific investigations.

68. Color Changing Invisible Ink

Color Changing Invisible Ink

The Color Changing Invisible Ink experiment offers an intriguing and fun opportunity for students to explore chemistry and learn about the concept of chemical reactions.

Learn more: Research Parent

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A fascinating and cognitive experiment - handmade production of the polymer crystals!

chemistry experiments elephant toothpaste

Very funny and cute - you can play with them! Children will learn how to make slimes and take them home as a keepsake!

chemistry experiments elephant toothpaste

And how does an elephant brush its teeth? Probably a giant toothpaste.

chemistry experiments elephant toothpaste

These magic balls can disappear in the water!

chemistry experiments elephant toothpaste

These crystals have magical properties! I wonder what will happen if you add them to the water?

chemistry experiments elephant toothpaste

If you rub a lamp, you will see a gin. And if the flask?

chemistry experiments elephant toothpaste

Slime - liquid and solid at the same time, which means - very funny and funny. And how they like children!

chemistry experiments elephant toothpaste

Well, let's mix our super-reagents ... What happens? So much slime! You can take it and play with friends!

chemistry experiments elephant toothpaste

Let’s drop a glass on the head of Professor! Watch what happens…

chemistry experiments elephant toothpaste

Is it possible to make the winter by yourself? It takes a lot of snow!

chemistry experiments elephant toothpaste

They are looooong, colorful and cheerful! And they can be taken home.

chemistry experiments elephant toothpaste

Let's get thunder right into the room! Such a rumble!

chemistry experiments elephant toothpaste

Time to fool around! Hold a spot in the line to get cool hairstyle!

chemistry experiments elephant toothpaste

So long and colorful - children adore them! They are handcrafted and given to kids as a souvenir!

chemistry experiments elephant toothpaste

We will deliver a professional-grade machine for cotton candy making, and children will prepare a fluffy delicacy by themselves!

chemistry experiments elephant toothpaste

Preparation of delicious dessert with liquid nitrogen will not leave indifferent little “sweet teeth”

chemistry experiments elephant toothpaste

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Children will take part in these "chemical tricks", hold a scientific fitness training, learn a lot of new and interesting things. As a bonus, after this program some of our viewers bring a report to the school and get "excellent" mark! Everyone will be able to create a cheerful souvenir in memory of the party.

chemistry experiments elephant toothpaste

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chemistry experiments elephant toothpaste

This scientific show is completely interactive, so everyone can feel like a great scientist. And the show is very funny, because this is so cool to fool around with miracle worms, slimes and super-mucus! Depending on the show duration you choose, the number of experiments will change

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chemistry experiments elephant toothpaste

Last Saturday with my daughters we watched the Scientific Shows Cryo ice cream! It was fantastic! Very professional, fun and informative. Children themselves made ice cream and it turned out very tasty! We also tried Cryo popcorn and turned a live rose into stone. I saw two similar Scientific Shows in Moscow. In New York it's much better! Highly recommend!

chemistry experiments elephant toothpaste

Awesome show! Kids were very engaged and enjoyed it very much! (Adults enjoyed it too).

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Awesome show. My kids had a blast. And they can’t stop talking about it.

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Crazy Science Shows holds children's birthday party and graduation parties, events in the kindergartens, schools and shopping centers, at home.

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IMAGES

  1. Elephant Toothpaste Science Experiment

    chemistry experiments elephant toothpaste

  2. Create the classic foamy fountain Elephant Toothpaste at home in 2021

    chemistry experiments elephant toothpaste

  3. Elephant Toothpaste Kinetics at Anthony Terrell blog

    chemistry experiments elephant toothpaste

  4. ELEPHANT’S TOOTHPASTE: An impressive experiment you can try at home

    chemistry experiments elephant toothpaste

  5. Chemistry Demo: Elephant Toothpaste

    chemistry experiments elephant toothpaste

  6. Elephant Toothpaste Experiment Explained

    chemistry experiments elephant toothpaste

VIDEO

  1. At-Home Science Experiments: Elephant's Toothpaste😲

  2. HOW TO MAKE ELEPHANT TOOTHPASTE EXPERIMENT

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  4. Elephant 🐘Toothpaste Synthesis||Magic Of Chemistry|| #youtubeshorts#shortsvideo#experiment#chemistry

  5. DON'T MIX ⚠️ Elephant Toothpaste Experiments

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COMMENTS

  1. Elephant Toothpaste

    Instructions. Pour 1/2 cup of hydrogen peroxide into the bottle. Add a big squirt of dish soap into the bottle, and swirl gently to mix. If you want to make your foam a single color, add a few drops of food coloring directly into the hydrogen peroxide, and swirl the bottle gently to mix. If you want to give your foam stripes like some ...

  2. Elephant Toothpaste Chemistry Demonstration

    Elephant Toothpaste Materials. The chemical reaction in this demonstration is between the hydrogen peroxide and a solution of potassium iodide and dishwashing detergent that captures the gases to make bubbles. 50-100 ml of 30% hydrogen peroxide (H 2 O 2) solution (Note: This hydrogen peroxide solution is much more concentrated than the kind you ...

  3. Elephant Toothpaste

    Set aside the solution for now. Set the cylinder or flask in a tray or on a tarp. Pour about 60 ml (2 ounces) of 30% hydrogen peroxide into the glass tube. Add a squirt (about 5 ml) of dishwashing liquid to the tube. If you want colored foam, add a few drops of food coloring. Swirl the liquids to mix them.

  4. Elephant Toothpaste Science Experiment

    Elephant Toothpaste Experiment Instructions. Step 1 - Combine two tablespoons of warm water with one teaspoon of yeast and mix until the yeast is completely dissolved in the water. Step 2 - Pour 1/2 cup hydrogen peroxide into the empty bottle. You'll see here that we have two bottles. The bottle pictured on the left is being filled with 3 ...

  5. Exploring Chemical Reactions with Elephant Toothpaste

    Learn about catalyzation and how to make a few ounces of liquid into a huge column of foam! Our host explains the science as he mixes hydrogen peroxide, soap, yeast, and warm water to create what's called elephant toothpaste. The yeast and warm water is mixed together first before the soap is added. Finally, the hydrogen peroxide is added to create a surprisingly large chemical reaction.

  6. Elephant Toothpaste Science Experiment

    Step 3: Add food colouring to the bottle sides (OPTIONAL) To create the toothpaste look, hold the bottle at a slight angle and add 3 drops of food colouring to the inside of the bottle opening. Then let the food colouring drip down the inside of the bottle in a straight line. Once the food colouring has run all the way down the inside of the ...

  7. Elephant Toothpaste Experiment: How-To Plus Free Worksheet

    Elephant Toothpaste Experiment steps: 1. Place the bottle on a large tray and put on your safety goggles and gloves. 2. Mix 1 tablespoon of yeast into 3 tablespoons of warm water until you achieve a creamy consistency. Place in a small cup and set to the side. 3.

  8. Elephant Toothpaste

    Elephant Toothpaste Science. The main reactor in this experiment is 3% Hydrogen Peroxide a liquid made from hydrogen atoms and oxygen atoms (chemical formula H 2 O 2), which is used in first aid as an antiseptic.Normally it comes in a dark bottle because H 2 O 2 or hydrogen peroxide breaks down in light, turning into oxygen (O 2) and water (H 2 O). Normally this reaction happens very slowly ...

  9. How to Make Elephant Toothpaste (with Pictures)

    2. Pour 4 tsp (20 ml) of 30% hydrogen peroxide into a graduated cylinder. This hydrogen peroxide is stronger than any household peroxide. Be sure to handle with care and make sure the graduated cylinder is set on a stable location. 3. Add 3 drops of food coloring. Play with the food dye for fun effects.

  10. How To Make Elephant Toothpaste

    Elephant Toothpaste Recipe. Pour ½ cup of peroxide into your 'toothpaste' container. Add a generous amount of dish soap. If you want to add color, now is the time. Add it directly to the peroxide for a solid color, or let it gently drip down the sides of the container to create stripes! Add your catalyst. Enjoy the bubbles!

  11. Make Elephant Toothpaste

    Procedure. Measure 1/2 cup of hydrogen peroxide, and carefully pour it into the bottle. Add a big squirt of dish soap into the bottle, and swirl gently to mix. If you want to make your foam a ...

  12. Kid-Friendly: How to Make Elephant Toothpaste

    The elephant toothpaste demo is one of the most popular chemistry demonstrations, in which a steaming tube of foam keeps erupting from its container, resembling a smooshed tube of elephant-sized toothpaste.The classic demo uses 30% hydrogen peroxide, which is not safe for kids, but there is a safe version of this demonstration that is still very cool.

  13. Elephant Toothpaste: A Spectacular Science Experiment for Kids

    Learn how to make Elephant Toothpaste at home with this fun and educational science experiment for kids. Discover the joy of chemistry by creating an exothermic reaction that produces a foamy explosion. Perfect for curious minds and family science days, with safety tips and step-by-step instructions

  14. Science Experiment: Elephant Toothpaste for Kids

    Get the FREE Science Experiments Download. Then squirt a small amount (about 1 Tbsp) of dish soap into the bottle. Gently swirl the bottle to mix contents. Then you can add some drops of food coloring. The more drops you add, the darker the color will be. Gently swirl the bottle again to mix the contents.

  15. Elephant toothpaste science experiment

    Step 5. Pour yeast mixture into soda bottle and remove funnel. WARNING: In case you missed it the first time, avoid touching or getting the chemicals on skin or clothing. And don't get too close, as heat and steam can be dangerous. The elephant toothpaste explodes from the bottle after a chemical reaction.

  16. How to make elephant toothpaste

    Learn how to create a spectacular chemical reaction with household ingredients and a bottle, and discover the science behind it.

  17. At-Home Science Experiments: Elephant's Toothpaste

    2. Add 8 drops of your favorite food coloring into the bottle. 3. Add about 1 tablespoon of liquid dish soap into the bottle and swish the bottle around a bit to mix it. 4. In a separate small cup, combine the warm water and the yeast together and mix for about 30 seconds. 5. Now the adventure starts!

  18. The Elephant's Toothpaste Experiment

    Use a funnel to carefully pour 3/4 cup (180 ml) of the hydrogen peroxide liquid into the bottle. Add about 10 drops of your favorite food coloring into the bottle. Add about 1 tablespoon (15ml) of liquid dish soap into the bottle and swish the bottle around a bit to mix it. In a separate small cup, combine the warm water and the yeast together ...

  19. Elephant's toothpaste

    Elephant toothpaste reaction. Elephant's toothpaste is a foamy substance caused by the rapid decomposition of hydrogen peroxide (H 2 O 2) using potassium iodide (KI) or yeast and warm water as a catalyst. [1] How rapidly the reaction proceeds will depend on the concentration of hydrogen peroxide. [2] [3] [4]Because it requires only a small number of ingredients and makes a "volcano of foam ...

  20. 10 Cool Chemistry Experiments

    Chemistry is king when it comes to making science cool. These 10 chemistry experiments will make anyone enjoy science. ... Affectionately known as elephant toothpaste, the chemical reaction between peroxide and potassium iodide shoots out a column of foam. If you add food coloring, you can customize the "toothpaste" for holiday-colored themes.

  21. Moscow Tutors Science project for kids: Elephant Toothpaste

    Science Experiment: Elephant Toothpaste This exciting science experiment works great in a discussion on reactions, as a demonstration, or as an actual experiment. To use it as an experiment, perform it once with your child, then ask your child what might happen if you changed the amounts or left out an ingredient. Let her direct…

  22. 68 Best Chemistry Experiments: Learn About Chemical Reactions

    23. Hatch a Baking Soda Dinosaur Egg. As the baking soda dries and hardens around the toy, it forms a "shell" resembling a dinosaur egg. To hatch the egg, students can pour vinegar onto the shell, causing a chemical reaction that produces carbon dioxide gas. Learn more: Steam Powered Family. 24.

  23. Smile O Poly science for kids, science experiments, kids party

    Crazy science show = fun kids party entertainment + learning. Crazy Science Shows holds children's birthday party and graduation parties, events in the kindergartens, schools and shopping centers, at home. Our science experiments for kids not only look spectacular, but also clearly demonstrate the laws of physics or chemistry.