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22 Cards in this Set

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Transpiration
Is the process by which plants release water vapor into the air through their leaves
Aquifer
A rock layer that stores and allows the flow of ground water
evaporation
Occurs when liquid water from the Earth’s surface and living organisms changes into water vapor
runoff
Is water that flows across land and collects in rivers, streams, and eventually in the oceans
condensation
Occurs when water vapor cools and changes into liquid water droplets that form clouds in the atmosphere
precipitation
Is rain, snow, sleet, or hail that falls from clouds onto the Earth’s surface
infiltration
Is the movement of water in the ground due to the pull of gravity
percolation
Is the downward movement of water through pores and other spaces in soil due to gravity
Deposition
process by which material is dropped or settles
Gradient
change in elevation, divided by distance
alluvium
rocks and soil recently deposited by a river
permeability
a rock's ability to allow water to pass through
Channel
the path that a stream follows
Discharge
volume of water transported by a stream in a given amount of time
erosion
caused by a river removing rocks and soil from its riverbed
water table
the underground boundary where the zones of aeration and saturation meet
ground water
the water in rocks below the Earth's surface
divide
drainage basins are separated from each other by an area of higher ground
Drainage basin
Also known as watershed- an aread drained by a river system
Tributary
a small river that flows into a larger river
load
materials carried in a stream's water
water cycle
the continous movement of water from lakes and oceans, into the air, onto the land, into the ground and back to lakes and oceans.