| A | B |
| Heat of Fusion | The amount of heat energy that will change a solid at its melting point to a liquid at the same temperature |
| Heat of Vaporization | The amount of heat energy that will change a liquid at its boiling point to a gas at the same temperature |
| Sublimation | The direct change in state from a solid to a gas without melting |
| Condensation | When a gas changes to a liquid |
| Specific Heat | The amount of heat energy needed to raise the temperature of 1 g of a substance by 1 degree C |
| Kinetic Theory | says all matter is made of particles that are in constant motion |
| Kinetic Energy | Energy of Motion |
| Potential Energy | Stored Energy |