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Water
chpt1: sctin 1 and 4
12
Science
5th Grade
12/01/2010

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Term
Erosion
Definition
The process by which the surface of the earth is worn away by the action of soil and sediment.
Term
Water Cycle
Definition
The continuous movement of water from the ocean to the atmosphere to the land and back to the ocean.
Term
Tributary
Definition
A stream that flows to a larger stream or other body of water.
Term
Watershed
Definition
The area drained by a river, stream, etc.
Term
Divide
Definition
The boundary drainage between areas that have streams that flow in opposite directions.
Term
Channel
Definition
The path that a stream follows.
Term
Load
Definition
The materials caried by a stream.
Term
Point-Source Pollution
Definition
Pollution that comes fron a specific place.
Term
Nonpoint-Source Pollution
Definition
Pollution that comes from more than 1 source.
Term
Sewage Treatment Plant
Definition
The place where the process of removing contaminants from wastewater is done.
Term
Septic Tank
Definition
Where solid matter is desintegrated by bacteria.
Term
Discharge
Definition
The amount of water that a river has
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