| A | B |
|---|
| burning (n) | a chemical reaction that occurs when a fuel combines with oxygen, giving off energy as heat; a.k.a. combustion |
| glucose (n) | a simple sugar with the chemical formula C6H12O6; a reactant in respiration |
| respiration (n) | the chemical reaction in all cells where glucose is broken down to release energy |
| oxygen (n) | a colorless, odorless gas that is a reactant in respiration |
| carbon dioxide (n) | a compound that contains carbon and oxygen; CO2 is a colorless gas that is a product of respiration |
| limewater (n) | used to test for the presence of carbon dioxide |
| hydrogen carbonate indicator (n) | used to test for carbon dioxide |
| combustion | a chemical reaction that gives off energy in the form of heat; a.k.a. burning |
| the Principle of Conservation of Energy | Energy cannot be created or destroyed; it is only converted from 1 form to another |
| combustion * (n) | a chemical reaction that gives off energy in the form of heat, a.k.a. burning |
| The Principle of Conservation of Energy* (n) | "Energy can never be created or destroyed; it is only converted from one form to another.” |
