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ES Topic 9

Weathering & Erosion

QuestionAnswer
abrasion scratching or rubbing away of rocks due to mov’t of sediments or erosion
Breaking wave the raising up and falling forward of water as waves drag along the ocean bottom
Chemical weathering rocks breaking down due to exposure to oxygen, acids and water
delta sediment deposits at the mouth of a river or stream, where it connects to a calm body of water such as a lake or ocean
erosion general term for wearing away of sediment by lots of different processes.
Finger lake body of water formed in a long narrow U-shaped glacial valley, often dammed at one end by glacial sediment
Flood plain level area that tends to flood easily
Glacial groove long, narrow channel created by rocks frozen in the bottom of a glacier; shows the direction of glacial movement
glacier a large mass of naturally formed ice that moves downhill due to gravity
meander a curve or bend in a stream or river
Physical weathering mechanical or physical breakdown of rock on Earth’s surface into smaller pieces
sandbar pile of low ridge sand just below water level
sandblasting erosional process that uses blowing sand to shape a landscape
sediment small particles formed by weathering; material transported by erosional systems
stream water flowing through a channel on land
Stream abrasion rounding, smoothing and reduction of sediments from rolling, sliding or bouncing of solid sediments along a stream bottom.
Stream channel shape the shape of the body of rock or loose materials that confine the stream
tributary small stream or river that flows into a bigger body of water
U-shaped valley the shape of a valley after it has been eroded by mountain glaciers
V-shaped valley the shape of a valley after it has been eroded by a stream or river
watershed the area of land drained by a stream
weathering general term for the chemical and physical alterations of rock and other materials, and other actions
Created by: etucci
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