Funny Elephant Toothpaste (Chemical Reaction)

you may find related materials in here:
35% hydrogen peroxide: https://goo.gl/RoVc9w
Dry yeast: https://goo.gl/Muxei4
Potassium Iodide: https://goo.gl/Li4F9j
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If we need to choose top 10 most interesting chemical reactions, I think elephant toothpaste must be one of them.

Elephant toothpaste is a very easy and funny science experiment, which results in a rapid eruption of huge amount of foam. In the past few years, I have performed this experiment with my kids over 50 times.

Things we need:
Level 1: beginner level
-10% hydrogen peroxide
-food coloring
-dish soap
-yeast

Level2: Intermediate level
-20% hydrogen peroxide*
-food coloring
-dish soap
-saturated potassium iodide

Level3: ultimate level
-35% hydrogen peroxide*
-food coloring
-dish soap
-saturated potassium iodide

*20% or above hydrogen peroxide is highly corrosive, please wear glove when you deal with it

Elephant toothpaste is the decomposition process of hydrogen peroxide, while yeast / potassium iodide works as a catalyst to break down the hydrogen peroxide into oxygen and water. Soap will then mixed with the oxygen and water, which turn into foam.

Видео Funny Elephant Toothpaste (Chemical Reaction) канала DIY bama