Phase Changes Melting Vaporization Condensation Freezing Sublimation.

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Presentation transcript:

Phase Changes Melting Vaporization Condensation Freezing Sublimation

Melting Solid  Liquid Add heat energy Example Ice melting Ice melts at… 0 o C Melting point

Vaporization Liquid  Gas Add heat energy Water boiling Water boils at… 100 o C Boiling point Evaporation Vaporization at the surface of a liquid

Condensation Gas  Liquid Take away heat energy Water droplets on the outside of a glass Water vapor condenses at… 100 o C

Freezing Liquid  Solid Take away heat energy Water becoming ice Water freezes at… 0 o C Freezing point

Sublimation Solid  Gas Add heat energy Dry Ice becoming CO 2 (Carbon Dioxide) o C o F

Energy Phase changes ALWAYS require adding or removing energy. Temperature does NOT change during a phase change. Phase changes are examples of Physical changes

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