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Phase Changes
Vocabulary for phase changes.
| Term | Definition |
|---|---|
| Altitude | Vertical distance, or elevation, above sea level. |
| Boil | Change from liquid to a gas. |
| Boiling Point | The temperature at which boiling occurs. |
| Freeze | Change from a liquid to solid. |
| Freezing Point | The temperature at which freezing occurs. |
| Gas | A phase in which matter has no definite shape or volume. |
| Gas Properties | Will expand to fill any containe; can be compressed; molecules relatively far apart and move freely. |
| Water Vapor | Water in the gas phase. |
| Liquid | A phase in which matter has definite volume but no definite shape. |
| Liquid Properties | Will take the shape of a container but cannot expand or be compressed; molecules in a liquid move randomly but stay close to one another. |
| Melt | Change from a solid to liquid. |
| Melting Point | The temperature at which melting occurs. |
| Phase | A state of matter with certain physical properties. |
| Solid | A phase in which matter has a definite shape and a definite volume. |
| Solid Properties | Will retain the same shape and volume in any container; atoms are held in a rigid structure and cannot move freely. |
| Ice | Water in the solid phase. |
| Thermal Energy | Energy in the form of heat. |
| Vaporization | Rapid change from liquid to gas. |
| Condensation | Change from gas to liquid. |
| Sublimation | Change from solid to gas. |
| Evaporation | Slow change from liquid to gas. |
| Deposition | Change from gas to solid. |