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Chap 13 less 2 & 3

How does moving water cause erosion? It is taken up by plants or goes into a runoff.
Runoff When water moves over the land, it carries particles with it.
Rills Tiny grooves in the soil, formed by runoffs.
Gully A large groove, or channel, in the soil that carries runoff after a rainstorm.
Stream A channel along which water is continuously flowing down a slope.
Tributary A stream or river that flows into a larger river.
What land features are formed by water erosion? Through erosion, a river creates valleys, waterfalls, flood plains, meanders, and oxbow lakes.
Flood plain The flat, wide area of land along a river.
Meander A loop like bend in the course of a river.
Oxbow lake A meander that has been cut off from the river.
What land features are formed by water deposition? Deposition creates land forms such as alluvial fans and deltas.
Delta Sediment deposited where a river flows into an ocean or lake builds up a land form.
Alluvial fan A wide, sloping deposit of sediment formed where a stream leaves a mountain range.
Ground water Underground water.
Stalactite A deposit that hangs like an icicle from the roof of a cave.
Stalagmite A cone shaped of this material from the cave floor.
Karst topography Landscape such as a sinkhole.
Glacier Any large mass of ice that moves slowly over land.
How do glaciers form and move? Glaciers can form only in an area where more snow falls than melts.
Continental glacier A glacier that covers much of a continent or large island.
Ice ages When continental glaciers covered much of Earth's surface.
Valley glacier A long, narrow glacier that forms when snow and ice build up high in a mountain valley.
How do glaciers cause erosion and deposition? The two processes by which glaciers erode the land are plucking and abrasion.
Plucking When a glacier flows over the land, it picks up rocks.
Till The mixture of sediments that a glacier deposits directly on the surface.
Mormaine The till deposited at the edges of a glacier forms a ridge.
Kettle A small depression that forms when a chunk of ice is left in glacial till.
Created by: kwinkler