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Phase changes
Question | Answer |
---|---|
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 high freezing occurs |
Gas | A phase in which matter has definite volume but no definite shape |
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 to 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 |
Phase | State of matter with certain number of physical properties |
solid | a phase in which mater has a definite shape and 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 |
condestenation | change from gas to liquid |
sublimitation | change from solid to gas |
evaporation | slow change from gas to liquid |
desposition | change from gas to solid |
gas properties | will expand to fill any container; can be compressed; move freely and far apart |