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Ch. 9
Landforms
Term | Definition |
---|---|
landform | a natural land shape or feature |
topography | all the kinds of landforms in a certain area |
glacier | a large, thick, sheet of ice |
sand dune | a sand hill that is made and shaped by wind |
delta | an area of new land at the mouth of the river |
sinkhole | a large hole formed when the roof of a cave collapses |
plates | blocks of crust and upper mantle rock that fit together like puzzle pieces |
earthquake | a movement of the ground caused by a sudden release of energy in Earth's crust |
epicenter | the point on Earth's surface directly above the focus |
fault | a break in Earth's crust |
magma | melted, or molten rock beneath Earth's surface |
lava | melted, or molten rock that reaches Earth's surface |
volcano | a mountain made of lava, ash, or other materials from eruptions that occur at an opening in Earth's crust |