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solids liquids & gas

key definitions

matter anything that occupies space and has mass
solids state of matter with a regular shape, fixed mass and fixed volume
liquids state of matter with irregular shape, fixed mass and fixed volume
gas state of matter with no regular shape, fixed mass but no fixed volume
diffusion spreading of particles to fill available space
melting changing of a solid to a liquid when heat is added
evaporating changing of a liquid to a gas when heat is added
condensing changing of a gas to a liquid when heat is taken away
freezing changing of a liquid to a solid when heat is taken away
boiling when evaporation is occurring throughout a liquid
boiling point temperature at which evaporation occurs throughout a liquid
Created by: denisec08