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Phases Of Matter
Phases Of Matter Vocabulary
Term | Definition |
---|---|
Altitude – | vertical distance, or elevation, above sea level. |
Boil – | |
Boiling point¬ – | the temperature at which boiling occurs. At sea level, the boiling point of water is 100 °C (212 °F). Water boils at lower temperatures at higher altitudes because air pressure is lower there. |
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 – | |
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 properties. Solid, liquid, and gas phases occur naturally on Earth. Plasma is a phase found in stars. |
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 – | |
Thermal Energy – | |
Vaporization – | |
Condensation – | |
Sublimation – | |
Evaporation – | |
Deposition – |