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Erosion and Deposition - Water

Earth Science - Middle School

 
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Erosion & Deposition - Water © Copyright NewPath Learning. All Rights Reserved. 94-4548 Visit www.newpathlearning.com for Online Learning Resources. Moving Water Carries Sediment Rivers and streams move across the Earth’s surface and shape the landscape. Flowing water has enough energy to move large amounts of sediment, composed of soil, rock, clay and sand. The amount of sediment that is carried by a river or stream is called its load. gravity weathering deposition load Deltas & Allu vial Fans When a river empties into an ocean or lake, sediments are deposited and a triangular-shaped delta is formed. When water transports sediments from a hilly area to a flat area, the water slows down and sediment forms an alluvial fan. Waves & Ro ck Formations Ocean waves contain energy that breaks down rock and shapes coastlines. Rock formations created by wave erosion include headland cliffs, sea caves, sea arches and sea stacks. Waves & Deposition Waves can also move and deposit rocks, sediment and sand. Beaches are composed of different sources of eroded rock. Barrier spits are created from longshore wave currents, and sandbars are built up offshore by incoming storm waves. headland beach incoming waves erosion erosion Photos courtesy of USGS, USFWS & NASA. alluvial fan Mediterranean Sea delta Nile river sea stack sea arch beach sandbar spit
Pause and Review Moving water can shape the landscape in a variety of ways. Label and describe each type of land formation shown below. Land formation: ___________________________________ __________________________________________________ __________________________________________________ __________________________________________________ Land formation: ___________________________________ __________________________________________________ __________________________________________________ __________________________________________________ Land formation: ___________________________________ __________________________________________________ __________________________________________________ __________________________________________________ Land formation: ___________________________________ __________________________________________________ __________________________________________________ __________________________________________________ Land formation: ___________________________________ __________________________________________________ __________________________________________________ __________________________________________________ Erosion & Deposition - Water © Copyright NewPath Learning. All Rights Reserved. 94-4548 Visit www.newpathlearning.com for Online Learning Resources.
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