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Unit C: Erosion and Deposition
Vocabulary
20
Science
7th Grade
10/14/2007

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Cards

Term
Infer
Definition
To conclue by reasoning from evidence. 
Term
Landform
Definition
A feature of the earth's surface such as a lake, stream, valley, canyon, hill, ridge, or mountain.
Term

Wetlands

Definition

An area characterized by a high proportion of water and watery land, such as a swamp, marsh,or bog.

Term
Contour Interval
Definition
The elevation difference represented by the difference between two adjacent contour lines on a topographical map.
Term
Contour Line
Definition
A line on a topographic map that indicates places of equal elevation.
Term
Scale
Definition
The size of a diagram or model in proportion to the actual size of the object.
Term
Topographical Map
Definition
A map that uses contour lines to represent the elevation of land surfaces.
Term

Delta

Definition
A fan-shaped area that develops in the flat, low area where a river empties into a large body of water.
Term
Model
Definition
Any represntation of a system, or its components, to help one study and understand how it works.
Term
River Channel
Definition
The depression in the land through which a river flows.
Term
Sediment
Definition
Small bits of decomposed earth materials such as rocks, minerals, and shells.
Term
Earth Processes
Definition
Dynamic actions that occur both on earht's surface and inside earth.
Term
Constructive
Definition
A force or earth process that builds up earth material to create landforms.
Term
Deposition
Definition
The earth process that results in a deposit of earth materials.
Term
Destructive
Definition
A force or earth process that breaks down or removes earth materials.
Term
Erosion
Definition
The earth process by which earth materials are removed from one place and transported elsewhere.
Term
Floodplain
Definition
The relatively level area on either side of a river that becomes covered with water when the water level in the river rises above its banks and over flows.
Term
Weathering
Definition
The breakup of rock caused by mechanical or chemical processes.
Term
X-axis
Definition
The horizontal axis of a graph.
Term
Y-axis
Definition
The vertical axis of a graph
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