“Foaming Halloween Pumpkin” experiment
How to make a pumpkin overflow with foam
Halloween is coming soon, it’s time to get ready! Have an original foam party!
Reagents and equipment:
- 30% hydrogen peroxide;
- food coloring;
- liquid soap;
- three cups.
Prepare a solution for the foam: pour green food coloring, liquid soap and hydrogen peroxide into the first cup. Mix the solution with a spoon. Mix yeast and water in the second cup. Put a third cup into the Halloween pumpkin and add the mixture from the first cup. Then add the mixture from the second cup and put the lid on the pumpkin. Green foam will start to pour out of the pumpkin’s mouth and eyes.
Yeast acts as a catalyst in the breakdown of hydrogen peroxide into water and oxygen. The oxygen makes the dishwashing liquid foam abundantly. Thick green foam gushes out of the pumpkin’s eyes and mouth. The pumpkin just overflows with joy!
30% hydrogen peroxide leaves burns on the skin – observe safety rules.