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a natural land shape or feature
Landform
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all the kinds of landforms in a certain place
Topography
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a large, thick sheet of ice
Glacier
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a hill of sand, made and shaped by wind
sand dune
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an area of new land at the mouth of a river, formed from sediments carried by the river.
Delta
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a large hole that forms when the roof of a cave collapses
Sink hole
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a section of earth's crust and mantle that fits together with other sections, like puzzle pieces.
Plate
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a movement of the ground caused by a sudden release of energy in the earth's crust.
Earthquake
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the point on earth's surface directly above the focus of an earthquake
Epicenter
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a break in earth's crust
Fault
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melted rock beneath earth's surface
Magma
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melted rock that reaches earth's surface
Lava
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a mountain made of lava, ash, or other materials from erruptions that occur at an opening in the earth's crust.
Volcano
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