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Vocab Test
Water Erosion
17
Science
Not Applicable
01/11/2005

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Term
Zone of Saturation
Definition
Level below the water table completely filled with water
Term
Zone of Aeration
Definition
Level above water table that is filled with air
Term
Water Table
Definition
Where the aeration and saturation layers meet underground
Term
Tributaries
Definition
Smaller streams or rivers that flow into a larger one
Term
Slope Retreat
Definition
When a river gets wider by erosion
Term
Runoff
Definition
Water that flows across land and collects in rivers streams and eventually the ocean
Term
Drainage Basin
Definition
The land drained by a river system which includes the main river and all of its tributaries
Term
Flood PLain
Definition
An area along a river formed from sediments deposited by floods
Term
Ground Water
Definition
Water that is located within rocks below the Earth's surface
Term
Headward Erosion
Definition
Where a river gets longer
Term
Impermeable
Definition
Liquids will not pass through
Term
Load
Definition
Materials carried in a stream's water
Term
Meander
Definition
A bend in the river
Term
Delta
Definition
A fan shaped deposite of alluvium at the mouth of a stream where the stream empties into a large body of water
Term
Alluvial Fan
Definition
Fan shaped deposites of alluvium that form on dry land
Term
Abrasion
Definition
The grinding and weathering down of rock surfaces by other rock or sand particles
Term
Divide
Definition
An area of higher ground that seperates drainage baisins
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