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Crazy Stuff Fantasic Foamy Fountain / Elephant’ s toothpaste
How does it work: Foam is awesome! The foam you made 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. 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
You will need:
• A clean 16 ounce plastic soda bottle
• 1 / 2 cup 20-volume hydrogen peroxide liquid( 20-volume is a 6 % solution, ask an adult to get this from a beauty supply store or hair salon)
• 1 tablespoon( one packet) of dry yeast
• 3 tablespoons of warm water
• Liquid dish washing soap
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!
How to proceed: 1. Hydrogen peroxide can irritate skin and eyes, so put on those