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Chapter 8
Key Terms
9
Science
7th Grade
12/12/2006

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Term
sediment
Definition
material moved by erosion
Term
erosion
Definition
process by which natural forces move weathered rock and soil from one place to another
Term
deposition
Definition
occurs where the agents of erosion lay down sediment
Term
gravity
Definition
the force that moves rock and other materials downhill
Term
four different types of mass movement
Definition
landslides, mudslides, slump, creep
Term
What is the major agent of the erosiong that has shaped Earth's surface?
Definition
moving water
Term
tributary
Definition
stream that flows into a larger stream
Term
drainage basin
Definition
land area from which a river and its tributaries collect their water
Term
divide
Definition
high ground between two drainage basins
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