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19 Cards in this Set
- Front
- Back
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canyon
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A deep valley with steep sides shaped by water.
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mountain
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A part of the Earth's crust that has been raised high (at least 300 meters) above the surrounding land
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river
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A body of flowing water that empties into an ocean, valley, lake or another river.
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valley
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The low land that runs between mountains or hills.
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A river part that is a result of deposition?
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delta
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True facts about landforms
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Some landforms change slowly.
Some landforms change quickly. Some landforms change because of the activity of humans and animals. Landforms change because the Earth's surface is constantly changing |
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How is a glacier formed?
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Snow builds up over many years. It is compressed and turns to ice.
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How is a moraine formed?
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Glaciers drop the rock piles as they move across the surface.
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How is an erratic formed?
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Glaciers drop boulders as they move.
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Abrasion
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The grinding down of one rock by another - can leave scratch marks in the surface of the Earth
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When you rubbed the quartzite 'grinder' against the samples, which types of rock broke down most easily?
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pumice and sandstone
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What can be created by rock abrasion?
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pebbles, rock chips, sand
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Two rocks that wear down the fastest?
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pumice and sandstone
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Rock that wears down the slowest?
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quartzite
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TRUE or FALSE: The Earth's crust is made up of plates that do not move.
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FALSE
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TRUE or FALSE: The Earth's crust is a solid mass of rock that does not move.
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FALSE
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TRUE or FALSE: The Earth's crust is made up of plates that slowly move.
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TRUE
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Description of a young mountain range
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jagged peaks and steep mountainsides
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What builds up the surface of the Earth?
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lava flow
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