8th grade - Volcano
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Volcano | A mountain that forms when molten rock, called magma, is forced to the Earth's surface.
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| Lava | magma that flows onto the Earth's surface
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| Pyroclastic Material | Consists of rock fragments created by explosive volcanic eruptions.
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| Shield Volcanoes | A type of volcano that is built out of layers of lava from repeated nonexplosive eruptions.
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| Cinder Cone Volcanoes | Small volcanic cones made entirely of pyroclastic material from moderately explosive eruptions.
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| Composite Volcanoes | Volcanoes that are formed by explosive eruptions of pyroclastic material followed by quieter outpourings of lava.
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| Hot Spots | Places on the Earth's surface that are directly above columns of rising magma.
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| Convergent boundary | The place where two tectonic plates collide.
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| Divergent boundary | When two tectonic plates separate and move away from each other.
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| Crater | A funnel-shaped pit at the top of the central vent in most volcanoes.
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| Caldera | This forms when a magma chamber that supplies material to a volcano empties and its roof collapses.
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Created by:
Lacy07
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