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11 Cards in this Set
- Front
- Back
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volcano
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A weak spot in the crust where magma has come to the surface
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magma
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the molten mixture of rock forming substances, gases, and water from the mantle
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lava
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liquid magma that reaches the surface. Also, the rock that is formed when liquid lava hardens.
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hot spot
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An area where magma from deep within the mantle melts through the crust above it.
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magma chamber
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The pocket beneath the volcano where magma collects.
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pipe
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A long tube through which magma moves from the magma chamber to Earth's surface.
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vent
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Opening through which magma leaves a volcano.
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lava flow
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area covered by lava from a volcano's vent.
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crater
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A bowl shaped area that forms around a volcano's central opening.
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silica
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A material found in magma that is formed from the elements oxygen and silicon.
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pyroclastic flow
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an explosive volcano eruption of ash, cinders, bombs, and gasses.
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