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17 Cards in this Set
- Front
- Back
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Lava
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If it is very runny then it probably has a low silica content.
It is magma that flows on the Earth's surface. |
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Dormant volcano
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It might erupt again.
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Composite volcano
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It is a combination of explosive and nonexplosive eruptions.
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Shield volcano
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It has gently sloping sides.
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Hot spots
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These are volcanoes of Hawaii and other places far from tectonic plate boundaries.
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Predict what will happen: If volcanic dust and ash remain in the atmosphere for months or years.
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Solar refection will increase, and temperatures will decrease.
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magma
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Molton rock underground
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Pyroclastic material
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Magma that is blasted into the air and hardens.
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Vent
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A crack or opening in the Earth's crust.
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Volcanic bombs
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Large blobs of magma that harden in the air.
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cinder cone volcano
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Has steep slopes
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Caldera
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A large depression that forms when the magma chamber partially empties.
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extinct volcano
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They will probably never erupt again.
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Viscosity of lava
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How lava flows
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What happens when the temperature of a rock remains constant but the pressure on the rock decreases?
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Rock becomes liquid
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What happens at divergent plate boundaries?
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Tectonic plates move apart
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Volcano
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vent on Earth's surface through which magma and gases are expelled.
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