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15 Cards in this Set
- Front
- Back
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divergent boundary
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a place where the plates that make up Earth's crust and upper mantle move away from one another
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core
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the innermost layer of Earth, which consists of a molten outer part and a solid inner part
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Pangaea
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a super continent that existed 200 million years ago
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crust
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the thin, outer layer of Earth
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seismograph
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an instrument that records the intensity, duration, and nature of earthquake waves
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continental drift
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the slow movement of Earth's landmasses riding on plates
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theory
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an idea or group of ideas explaining facts
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mantle
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a thick layer of rock between the crust and the core of Earth
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focus
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the point, or place at which an earthquake begins
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earthquake
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shaking or movement of Earth's surface, caused by the release of stored energy along a fault
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lithosphere
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the solid, rocky layer of Earth, including the crust and top part of the mantle.
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plate tectonics
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a theory that Earth's crust is divided into distinct,moving plates
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asthenosphere
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the layer of Earth below the lithosphere; the upper part of the mantle
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convergent boundary
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place where the plates that make up the Earth's crust move together
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Moho
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dividing line between the Earth's crust and the mantle
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