| A | B |
|---|
| States of Matter | Solids, Liquids, Gas and Plasma |
| Evaporation | Liquid changes to a gas gradually at temperatures below the boiling point. |
| Buoyant Force | The ability of a liquid or gas to exert an upward force on an object immersed in it. |
| Thermal Expansion | Matter expands as it gets hotter and contracts when it cools. |
| Heat of Fusion | The amount of energy needed to change material from the solid to liquid state. |
| Thermal Pollution | Excess heat in water as a result of water pollution. |
| Heat of Vaporization | The amount of energy needed to change a material from a liquid state to a gas. |
| Pressure | The amount of force exerted per unit of area. |
| Crystal | The arrangement of particles in repeated geometric patterns. |
| Plasma | A gas like mixture of positively and negatively charged particles. |
| Condensation | Gas changes to a liquid when cooled to or below its boiling point. |
| Kinetic Theory of Matter | The idea that all matter is made up of constantly moving, tiny particles. |
| Pascal | SI unit of pressure. |
| Venturi Effect | Reduction in pressure of a fluid resulting from the speed increase as fluids are forced to flow faster through narrow spaces. |
