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when the atoms or molecules of a substance stick to other substances
adhesion
when the atoms or molecules of a substance stick together
cohesion
when a gas transforms into a liquid as a result of cooling
condensation
mass per unit volume; the amount of matter in a given amount of space
density
when a liquid to transform into a gas as a result of heating
evaporation
the total amount of water found underground, on the surface and in the atmosphere of a planet
hydrosphere
having a positive and negative end
polarity
rain, snow, sleet, hail
precipitation
a measure of the amount of salt in a body of water
salinity
a liquid or a gas that dissolves another substance
solvent
atoms and molecules in the surface of a substance exhibit the property of cohesion
surface tension
the journey water takes as it circulates from the land to the sky and back again
water cycle
a body of air that has about the same temperature and moisture throughout
air mass
air mass that forms over land; is dry
continental
air mass that forms near the poles; is cooler
polar
air mass that forms over a body of water; is moist
maritime
