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Chapter 9

Deposition occurs where the agents of erosion deposit, or lay down sediment.
Gravity the force that moves rock and other material downhill.
Landslides rock and soil slide quickly downhill
Mudflows rapid downhill movement of a mixture of rock, water, and soil.
Slump a mass of rock and soil suddenly slips down a slope.
Creep very slow downhill movement of rock and soil.
Runoff water that moves over Earth’s surface
Rills tiny grooves in the soil created by runoff.
Gully large groove, or channel, in the soil that carries runoff after a rainstorm.
Stream a channel along which water is continually flowing down a slope.
Tributary a stream or river that flows into a large river.
Waterfalls occur where a river meets an area of rock that is very hard and erodes away slowly.
Flood Plain flat, wide area along a river which floods when the river overflows.
Meander a loop-like bend in the course of a river.
Oxbow Lakes- a meander that has been cut off from the river.
Groundwater water that soaks into the ground, fills openings in the soils and trickles into spaces and cracks in layers of rock.
Stalactite a deposit that hangs like an icicle from the roof of a cave.
Stalagmite low dripping builds up a cone-shape from the floor.
Karst Topography region in which a layer of limestone close to the surface creates deep valleys, caverns, and sinkholes.
Energy the ability to do work or cause change.
Slope the amount a river drops toward sea level over a given distance.
Volume of Flow- volume of water that moves past a point on the river in a given time.
Turbulence roughness that prevents water from flowing smoothly.
Continental Glaciers covers much of a continent or large island.
Valley Glacier long, narrow glacier that forms when snow and ice build up high in a mountain valley.
Plucking as glaciers move over land, it picks up rocks
Till mixture of sediment that glaciers deposit directly on the surface.
Moraine idge formed by the till deposited at the edges of glaciers.
Terminal Moraine ridge of till at the farthest point reached by a glacier. Long Island in New York is a terminal glacier.
Kettle small depression that forms when a chunk of ice is left in glacier
Headland part of the shore that sticks out into the ocean.
Beach an area of wave–washed area along the coast.
Spits a beach that projects like a finger out into the water.
Sandbar long ridges of sand parallel to the coast.
Barrier forms when storm waves pile up large amounts of sand above sea level forming a long narrow island parallel to the coast.
Deflation process by which wind removes surface material.
Abrasion wind-carried sand can polish rock, but cause little erosion.
Sand Dunes deposit of wind blown sand.
Loess Sediment that is finer than sand and wind-deposited far from its source.
Created by: Alejandro Reyes