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10 Cards in this Set
- Front
- Back
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Earth's Crust
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Earth's outermost layer of rock.
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Sediment
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Small, solid fragments of rock and other materials that are carried and deposited by wind, water, or ice. Examples sand, mud or gravel.
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Igneous rock
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Rock that forms from molten rock.
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Metamorphic rock
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Igneous or sedimentary rock that has been changed into a new kind of rock as a result of great pressure and temperature.
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Plastic rock
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rock that behaves like something between a liquid and a solid.
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Earthquake
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Vibration of the earth that results either from volcanic activity or rock masses suddenly moving along a fault.
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Fault
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The boundary between two sections of rock that can move relative to one another.
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Focus
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The point where an earthquake begins.
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Epicenter
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The point ont he surface of the earth directly above an earthquake's focus.
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Sedimentary rock
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Rock formed when chemical reactions cement sediments together, hardening them.
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