2 Solid to a Liquid Melting. Melting Point. Where a solid changes to a liquid.Particles must gain energy and become free to move around.Melting Point.The temperature at which melting occurs.
3 Liquid to a Gas Vaporization: Two types: Boiling Point. Where a liquid changes to a gas.Particles gain more energy and separate from each other.Two types:BoilingHappens at the boiling pointHappens throughout the liquid.Evaporation.Below the boiling point.Only occurs at the surface of the liquid.Boiling Point.The temperature at which a liquid boils.Website
6 Gas to a Liquid Condensation Where a gas becomes a liquid. The reverse of vaporizationOccurs when a gas loses enough energy to form a liquid.Particles slow down and come back together.
7 Liquid to a Solid Freezing. Freezing Point. Where a liquid changes to a solid.Particles must lose enough energy that they no longer move around freely.Freezing Point.The temperature at which freezing occurs.
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