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15 Cards in this Set

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to shrink, when the temperature of a substance decreases, its particles slow down and move closer together
CONTRACTION
to spread out, when heat is applied to a substance its particles begin to move more rapidly and spread out as they get hotter
EXPANSION
the gradual change of a liquid into a gas
EVAPORATION
the rapid change of a liquid into a gas that occurs when heat is added
BOILING
retain their shape
volume does not change, regardless of the container it is placed in
not fluid
many form crystals
SOLIDS
take on the shape of their container
have a definite volume – they settle to the bottom of the container
fluid
LIQUIDS
do not have a fixed volume – the volume is determined by the container
fluid
GAS
the changing of a gas into a liquid
CONDENSATION
the temperature for a specific substance at which it changes from a liquid to a solid
FREEZING POINT
the temperature for a specific substance at which it changes from a liquid to a gas
BOILING POINT
the temperature for a specific substance at which it changes from a solid to a liquid
MELTING POINT
molecules arranged in organized patterns
SOLID
when heat is added to a solid the molecules vibrate faster and spread apart, resulting in a __________
LIQUID
When even more heat is added the molecules continue to speed up and move further apart, resulting in a ____________
GAS
The three states of matter
SOLID, LIQUID, AND GAS