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Lesson 2: How Can Matter Change State?

Terms in this set (6)

Boiling Point
The temperature at which a material changes from a liquid to a gas. For water, this is 100 degrees Celsius (212 degrees Fahrenheit).
Condensation
The process by which a material changes from a gas to a liquid.
Density
How close together the particles of a substance are. Denser materials have particles that are closer together in a given volume; less dense materials have fewer particles, with more space between them, in the same volume.
Evaporation
The process by which a material changes from a liquid to a gas.
Freezing Point
The temperature at which a material changes from a liquid to a solid. For water, this is 0 degrees Celsius (32 degrees Fahrenheit).
Melting Point
The temperature at which a material changes from a solid to a liquid. For water, this is 0 degrees Celsius (32 degrees Fahrenheit).
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