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| a mountain that forms when molten rocks called magma,is forced to the Earth's surface |
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| is the magma that flows onto the Earth's surface |
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| consists of the rock fragments created by explosive volcanic eruptions |
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| are built out of layers of lava from repeated nonexplosive eruptions |
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| are small volcanic cones made entirely of pyroclastic material from moderately explosive eruptions |
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sometimes referred to as stratovolcanoes, are one of the most common types of volcanoes
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| at the top of the central vent in volcanoes is a funnel-shaped pit |
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| forms when a magma chamber that supplies material to a volcano empties and its roof collapses |
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| are places on the Earth's surface that are directly above columns of rising magma |
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