Making Elephant Toothpaste Experiment


Elephant toothpaste is a term for a very large foam, resembling an elephant’s trunk, or because so many foams are produced so that pas made elephant toothpaste so that his elephant can brush his teeth. Elephant toothpaste experiments show that the hydrogen peroxide decomposition/decomposition reaction can be accelerated with a yeast catalyst. Hydrogen peroxide is a substance that is toxic to the body. If Hydrogen peroxide enters the body then it can be broken down with the aid of catalase enzymes into water and oxygen.

Tools and materials
1. A clean plastic soda bottle or empty water bottle
2. 1/2 cup or 20 ml of liquid hydrogen peroxide (6%),
3. 1 tablespoon of dried yeast
4. 3 tablespoons warm water
5. Liquid dishwashing soap
6. Food coloring
7. Small cup
8. Safety glasses


1. Hydrogen peroxide can irritate the skin and eyes, so we wear glasses for safety and ask adults to carefully pour hydrogen peroxide into the bottle (if the experiment is done by children)

2. Add 8 drops of favorite food coloring to the bottle.

Making Elephant Toothpaste Experiment

3. Add about 1 tablespoon of liquid dish soap into the bottle and a little swish sound will be heard around the bottle when mixing it.

Making Elephant Toothpaste Experiment

4. In another small cup, we mix warm water and yeast together and leave the mixture for about 30 seconds

5. Now the adventure begins. Pour the yeast water mixture into the bottle (use a funnel to help pour) and a very large foam immediately forms.

Making Elephant Toothpaste Experiment

6. Very large foam! The foam we make is special because every tiny bubble bubble is filled with oxygen. Yeast acts as a catalyst (helper) to remove oxygen from hydrogen peroxide. Because this reaction is so fast, it creates lots of bubbles.

Making Elephant Toothpaste Experiment

7. Experiment creates a reaction called an exothermic reaction, which means not only creating a foam, it creates heat. The resulting foam is only water, soap, and oxygen so you can clean it with a sponge and pour any remaining liquid in the bottle.

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