Looking for a color change when trying to tell the difference between a chemical and a physical change.
ELEPHANT TOOTHPASTE- exothermic reaction. Gives off heat and produces a gas.
Foam is awesome! The foam we made was special because each tiny foam bubble was filled with oxygen. The yeast acted as a catalyst (a helper) to remove the oxygen from the hydrogen peroxide. Since it did this very fast, it created lots and lots of bubbles.
The goal of this experiment was to demonstrate the power of gas produced when of baking soda and vinegar are mixed. The goal was for the balloon to be blown up by the gas created.
The phosphoric acid in the Coca-Cola removes the oxide coat and leaves the metal fresh and shiny.
