Wednesday, October 21, 2015

Fantastic Foamy Fountain Experiment

1 empty 16 ounce soda bottle
1/2 cup 20-volume hydrogen peroxide
1 Teaspoon (packet) of yeast
3 Tablespoons of warm water
Liquid dish detergent
Food coloring bottle
Styrofoam cup
Foil cake pan or lunch tray
Safety goggles

  1. Put on your safety goggles and ask an adult to help pour out 1/2 cup of hydrogen peroxide into the empty soda bottle. Hydrogen peroxide can irritate the eyes and skin so use with caution. Use a funnel if needed.
  2. Add 8 drops of food coloring to the soda bottle.
  3. Add approximately 1 tablespoon of the liquid dish detergent to the soda bottle. Swish the bottle to stir the contents.
  4. In the Styrofoam cup, mix the warm water and the packet of yeast for 30 seconds.  
  5. Put the soda bottle right side up on the foil cake pan. Make sure it is centered. Put the funnel in the opening of the bottle.
  6. Pour the contents of the Styrofoam cup into the soda bottle and swiftly take off the funnel from the soda bottle.

What Happened:
The fantastic foamy fountain is due to a chemical reaction. The hydrogen peroxide and water are called the reactants in the chemical reaction and cause the foamy sensation. The yeast is called a catalyst because it is added in order to make the reaction go faster. In order for a reaction to occur, the reactants must reach a certain energy level in order to proceed. This energy level is called the activation energy. In order to make a reaction go faster, some substances called catalysts, help lower the activation energy in order for the reactants to reach the activation energy quicker. Other ways to make a reaction go faster are by heating the reactants or increasing the pressure of the reactants.
For more information on this experiment as well as other really cool experiments, visit: