| A | B |
|---|
| Chemical Reaction | The process of making &/or breaking chemical bonds |
| Reactant(s) | Chemical(s) changed during a reaction |
| Product(s) | Chemical(s) that result from the chemical reactions |
| Endothermic Reaction | A reaction where more energy is absorbed than released |
| Exothermic Reaction | A reaction where more energy is released than absorbed |
| Equilibrium | A reaction that cycles back and forth at an equal rate |
| Bond Energy | The amount of energy it takes to break chemical bonds |
| Activation Energy | The amount of energy needed to start a chemical reaction |
| Enzyme | Catalysts for reactions in living things |
| Catalyst | A substance that decreases the activation energy |
| Substrate | The substance on which an enzyme reacts |
| Lock-and-Key | Model showing enzyme, substrate, and the chemical reaction |
