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Phase Changes
Vocal for science on phase changes
Term | Definition |
---|---|
Altitude | Vertical distance, or elevation, above sea level. |
Boil | Change from a liquid to a gas |
Boiling Point | The temperature at which boiling occurs |
Freeze | Change from a liquid to a 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 container; can be compressed; molecules relatively far apart and move freely. |
Water vapor | Water in the gas phase |
Liquid | A phase in which matter has no 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 a liquid |
Meting point | The temperature at which melting occurs. |
Phase | A state of matter with certain physical propeties. |
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 |