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Phys Sci Midterm

vocab for midterm

Atom The smallest chemical unit of matter
Molecule Two or more atoms linked together to make a substance with unique properties
Concentration The quantity of a substance within a certain volume
Humidity The moisture content of air
Absolute Humidity The mass of water vapor contained in a certain volume of air
Relative Humidity 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.
Greenhouse Effect The process by which certain gases (principally water vapor, carbon dioxide, and methane) trap heat that radiates from earth
Atmosphere The mass of air surrounding a planet
Barometer An instrument used to measure atmospheric pressure
Homosphere The lower layer of earth's atmosphere, which exists from ground level to roughly 80 kilometer above sea level
Heterosphere The upper layer of the earth's atmosphere, which exists higher than roughly 80 kilometers above sea level
Jet Streams Narrow bands of high speed winds that circle the earth, blowing from west to east
Heat Energy that is being transferred as a consequence of temperature differences
Atmospheric Pressure The pressure exerted by the atmosphere on all objects within it
Polar Molecule A molecule
Created by: Riley Beard