LANDFORMS PICTIONARY Butte - is a flat-topped rock or hill formation with steep sides caused by weathering and erosion from wind Canyon - A canyon is a deep valley with very steep sides caused by weathering and erosion from a river. Cave - is a large hole in the ground or in the side of a hill or mountain caused by weathering and erosion of the rock material. Delta - is a low, watery landform at the mouth of a river. It is formed from sediments such as silt, sand and small rocks that are carried downstream in a river and are deposited where the river meets a body of water such as a gulf or the sea. A delta is often (but not always) shaped like a triangle (hence its name, delta, a Greek letter that is shaped like a triangle). LANDFORMS PICTIONARY Fault – is a crack in the earth’s Dunes/Sand Dunes – are the result crust along which rocks move during of sand being weathered and eroded an earthquake [destructive]. [destructive] from one location and This is a picture [from space] of the deposited [constructive] in another San Andreas fault in California. location Glacier – is a slowly moving river of ice that scrapes against the earth Hill – is a raised area or mound of carving out [weathering] and land which can be cause by crustal moving [eroding] out the earth’s movement due to earthquakes crust and soil and depositing it in [constructive]; magma pushing up another location [constructive]. from under the earth [constructive]; or deposition [constructive] of material that has been weathered and eroded [destructive] from another location. LANDFORMS PICTIONARY Mountain – is higher than a hill. The tallest mountain on Earth is Mt. Everest. Mountains can be caused Valley – is a low place between by crustal movement due to mountains. Valleys can be caused earthquakes [constructive]; magma by glaciers [destructive]; or by pushing up from under the earth crustal movement due to [constructive]; or deposition earthquakes [constructive]; [constructive] of material that has been weathered and eroded [destructive] from another location. Volcano – is a mountain formed when magma and gases push up the overlying rock material [constructive]. Volcanoes can erupt, spewing lava, ashes, and hot Bonus Word: Landslide – sudden gases from deep inside the Earth. collapse of land: the collapse of part of a mountainside or cliff; slow or rapid movement of a soil and rock mass down a slope, or for the mass itself. It covers a variety of processes and landforms known as rockslide, rockfall, debris flow, liquefaction, slump, earthflow, and mudflow. LANDFORMS PICTIONARY Bonus Word: Creep - is the slow, down slope movement of soil under the influence of gravity. Bonus Word: Mudslide – a slow- moving and often destructive mass of mud flowing down a slope Bonus Word: Slump – a slow movement of sinking or collapse of land area.
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