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Science Terms 3.1

TermDefinition
evaporation process whereby the heat of the sun changes water on Earth's surface from a liquid to gas
condensation return of water vapor to a liquid state by cooling
precipitation liquid or solid water that falls from clouds on Earth
transpiration release of water vapor from plants' leaves into the air
runoff precipitation that runs off the ground
groundwater water from rain and melting snow that seeps into the ground and its stored beneath Earth's surface
source place where a stream or river begins
mouth place where a stream or river ends by flowing into another body of water
velocity distance water flows during some period of time, such as meters per second or feet per second
bed load sediment carried along the bottom of the channel of a stream or river
tributaries feeder streams
topography physical characteristics of the land
gradient slope of a river channel
Created by: strausei
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