Tagged: elephant toothpaste explosion

elephant toothpaste

Elephant Toothpaste: Fun Experiment For Kids

Elephant Toothpaste is a foamy substance resulting in a chemical reaction between hydrogen peroxide and potassium iodide or yeast with warm water as a catalyst. But it resembles toothpaste being squeezed from a tube.

Popular science experiment

Also known as the “marshmallow experiment”, it is a popular experiment for kids to perform in schools and parties. Hydrogen peroxide decomposes after coming into contact with potassium iodide or yeast with warm water. While decomposing, it breaks down into hydrogen and water. The oxygen pushes the solution out of the container. 

Bubbles are formed when oxygen is trapped in the soap particles and the trapped oxygen forms a huge amount of foam that looks like a toothpaste being squeezed from a tube. Color is added to give it a dramatic effect. It is an exothermic reaction hence the foam produced is hot.

Precautions

The foam that oozes out from the bottle in which the chemicals are mixed is too hot to touch hence shouldn’t be touched until it cools down. Children can do this experiment but only under the supervision of their guardians. 

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