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13 Cards in this Set
- Front
- Back
Crust |
The thin and solid outermost layer of the Earth above the mantle. |
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Mantle |
The layer of rock between the Earth's crust and core |
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Core |
the central part of the earth below the mantle |
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Lithosphere |
the solid outer layer of the earth |
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Asthenosphere |
the soft layer of the mantle on which the tectonic plates move |
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Mesosphere |
the strong lower part of the mantle between the athenosphere and the core |
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Tectonic Plates |
a block of lithosphere that consists of the crust and the rigid outermost part of the mantle |
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Continental drift |
the hypothesis that states that the continents once formed a single landmass, broke up and drifted to their current location |
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sea floor spreading |
process by which new oceanic lithosphere forms as magma rises towards the surface and solidifies |
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Plate tectonics |
The theory that explains how large pieces of the earths's outermost layer, called tectonic plates move and change shape |
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Convergent boundary |
the boundary formed by the collision of two lithosphere plates |
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Divergent boundary |
the boundary between two tectonic plates that are moving away from eachother |
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Transform boundary |
The boundary between two tectonic plates that are sliding past each other horizontally |