Thursday, August 6, 2020

Elephant toothpaste

This video describes how to make a elephant toothpaste.
You will need,
  • Soda bottle
  • 1/2 cup hydrogen peroxide ( we used 3% )
  • 1 tablespoon yeast
  • 3 tablespoon warm water
  • Liquid dish soap
  • Food color ( optional )
  • Safety goggles 
  • Do with adult help
        Elephant toothpaste is a foamy substance caused by the rapid decomposition of hydrogen peroxide using yeast and warm water. The yeast acted as a catalyst , a catalyst is used to speed up a reaction. Yeast broke down hydrogen peroxide into water and oxygen. It created lots and lots of bubbles. If you touch the bottle it will be warm because of exothermic reaction. Exothermic reaction is a chemical reaction that releases energy through heat or light.

                     2H2O2 ———> 2H2O + O2

How rapidly the reaction proceeds will depend on the concentration of hydrogen peroxide.


Hydrogen peroxide can irritate skin and eyes.And be sure to wear safety goggles. Please do with adult help.

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