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Sci7-Water - Cycle

Sci7-Unit2-Water Properties & Cycle

TermDefinition
Chemical formula of water H2O
polar molecule a molecule that has two poles, one is slightly negative and the other is slightly positive
polarity a property of being polar, having two opposite poles
cohesion the sticking together of particles of the same substance.
adhesion the sticking together of particles of different substances.
specific heat the energy needed to heat a substance by one degree Celsius.
solvent a liquid that dissolves substances
water cycle the movement of water through the Earth system
sublimation when a substance changes from a solid to a gas
deposition when a substance changes from a gas to a solid
condensation when a substance changes from a gas to a liquid
evaporation when a substance changes from a liquid to a gas
freezing when a substance changes from a liquid to a solid
melting when a substance changes from a solid to a liquid
transporation the release of water vapor into the air by plants
precipitation any form of water that falls to Earth from clouds
runoff any water that flows downhill because of gravity
infiltration the process of water seeping into the ground
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