|Altittude||vertical distance, or elevation, above sea level.|
|Boil||Change from a liquid to a gas.|
|Condensation||Change from liquid to gas.|
|Deposition||Change from gas to solid.|
|Evaporation||Slow change from liquid to gas.|
|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 to move freely.|
|Ice||Water in a solid place.|
|Liquid||A phase in which matter has definite volume but no definite shape.|
|Liquid Proproties||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°(32°F)
|Phase||A state of matter whit certain physical proprieties.
• Solid, liquid, and gas phases occur naturally on Earth.
• Plasma is a phase found in the stars.
|Solid||A phase in which matter has a definite shape and a definite volume.|
|Solid Properties||Will remain the same shape and volume in any container; atoms are held in a rigid structure and cannot move freely.|
|Sublimation||Change from solid to gas|
|Thermal Energy||Energy in the form of heat|
|Vaporization||Rapid change from a liquid to gas.|
|Water Vapor||Water in gas phase.|