Immersion
For immersion, we were making an elephant tooth paste with one bottle, 1/2 a cup of hydrogen peroxide liquid, 1 tablespoon of dried yeast, liquid dish washing soap, food coloring and a small cup.
The foam I 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. Your experiment created a reaction called an exothermic reaction - that means it's 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 was a chemical reaction because you can't turn it back.
here are some photos
The foam I 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. Your experiment created a reaction called an exothermic reaction - that means it's 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.
here are some photos
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