A few kids a few ingredients and how much fun ?? so simple and i just love the faces as the chemical reaction happens.
all you need is
2 tablespoons of warm water
1 teaspoon of dried yeast
mix the yeast and water together as this acts as the catalyst to cause the reaction with the hydrogen peroxide i also added a bit of food colouring in the yeast water mix for fun, 3 kids 3 colours.
In a bottle add 1/2 cup of 6% hydrogen peroxide, and a squirt of liquid soap. The hydrogen peroxide can be got from a beauty wholesaler, they may call it 20 volume do not use 3% from the supermarket as this wont work.