click below
click below
Normal Size Small Size show me how
Phase Changes
.............................................. Ke-
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- At sea level, the boiling point of water is 100 °C (212 °F)- |
Freeze | Change from a liquid to a solid- |
Freezing Point | The temperature at which freezing occurs- At sea level, the freezing point of water is 0 °C (32 °F)- |
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 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- |
Melting Point | The temperature at which melting occurs- At sea level, the melting point of ice is 0 °C (32 °F)- |
Phase | A state of matter with certain physical features- |
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- |