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| A vent or fissure in the Earth's surface through which magma and gases are expelled. |
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| The body of molten rock that feeds a volcano |
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| An opening at the surface of the Earth through which volcanic material passes. |
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| A funnel-shaped pit near the top of the central vent of a volcano. |
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| A large, semicircular depression that forms when the magma chamber below a volcano partially empties and causes the ground above to sink. |
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| A wide, flat landform that results from repeated nonexplosive eruptions of lava that spread over a large area. |
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| The bending, tilting, and breaking of the Earth's crust; the changes in the shape of rock in response to stress |
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| The sudden return of elastically deformed rock to its undeformed shape. |
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| A wave of energy that travels through the Earth, away from an earthquake in all directions. |
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| A seismic wave that causes particles of rock to move in a back and forth direction |
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| A seismic wave that causes particles of rock to move in a side to side direction |
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| Stress that occurs when forces act to squeeze an object. |
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| Stress that occurs when forces act to stretch an object. |
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| The bending of rock layers due to stress |
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