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Physical Science

Teacher: Mrs. Kling
The smallest chemical unit of matter.
The process by which certain gases (principally water vapor, carbon dioxide, and methane) trap heat that radiates from earth.
The mass of water vapor contained in a certain volume of air
The moisture content of air
The number of molecules (or atoms) of a substance in a mixture for every 1 million molecules (or atoms) in that mixture
Two or more atoms linked together to make a substance with unique properties
The quantity of a substance with a certain value
The ratio of the mass of water vapor in the air at a given temperature to the maximum mass of water vapor the air could hold at that temperature, expressed as a percentage.