Kid Friendly Elephant Toothpaste

Good afternoon scientists! We just got done doing another super fun chemistry experiment. You will definitely want to check this out with your little scientist.

MaterialsKid Friendly Elephant Toothpaste (5)

Safety Goggles

Gloves (We used Nitrile)

Measuring Cup (2)


1/4 Dry Measuring Cup

Instant Yeast (1 packet, we used rapid rise)

Dish Soap

Warm Water

Food Coloring

Hydrogen Peroxide (It is an antiseptic usually by the band-aids)

Vase or Cup (One with a narrow top works well)

Optional: Apron (If worried about staining your clothes.)

Recommended: Paper Towels to help clean-up or a disposable pan to place under the vase.


**Never eat or drink in lab setting. Watch your child at all times. Do not ingest. Wear your safety goggles and gloves for this experiment**

**This is a messy experiment. Best done outside, where you can hose it off after or place a disposable pan under the vase**

  1. In one measuring cup combine 1/2 cup of warm water with one packet of yeast. Mix together well.

2. Combine 1/2 cup of hydrogen peroxide, 1/4 cup dish soap, and 10 drops of food coloring. Gently mix together and pour into the vase or narrow top cup.

3. Be ready for the “show”. Quickly pour the contents of the yeast warm water mixture into the vase.

4. With your gloves on try touching the foam. Kid Friendly Elephant Toothpaste (30)

Talking Points

When the yeast combines with the hydrogen peroxide and soap mixture it causes it to foam up. The foam is the result of a chemical reaction or chemical change (a change that can not be undone). If you try touching the foam it will be warm/hot. When the chemical reaction occurs one of the byproducts is heat or thermal energy.

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