Important Terms In This Experiment

Catalyst: A chemical that dramatically changes the rate of reaction of other chemicals.

Catalytic Reaction: Certain chemicals decompose over time. A catalyst is a chemical that speeds
this process up. In this lab hydrogen peroxide decomposes to release oxygen and produce water, about
10% per year by volume. By adding a catalyst the reaction takes seconds to complete rather than the
majority of a decade.

Chemical Change: This is the result of the chemical reaction. When the atoms in the reaction get
rearranged and it produces a new material this results in a change of physical properties as well.

Exothermic Reaction: A chemical reaction that produces or release heat.

Foam: Gas trapped in a liquid or solid chemical.