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19 Cards in this Set
- Front
- Back
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Earth's Interior
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The interior of the earth is hot flow and movement of material within earth cause sections of earth's crust to move. This results in earthquakes, volcanic eruptions, and the creation of mountains, and ocean bains.
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Mantle movement
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is caused by differences in density of the materials.
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Hot material
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rises because it is less dense
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Cool material
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sinks because it is more dense.
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Convergent Plate
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more dense plate is boundairs, melts, and rises through cracks in the crust.
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island arc
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string of volcanic islands
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Plate Tectonics
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The theory that pieces of Earth's lithosphere are in constant motion, driven by converction currents in the mantle.
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Pagaea
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The name of the single land mass that broke apart 225 million years ago and gave rise to today's continents.
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Alfred Wegener
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1920 German sicentist who performed research on Pangaea.
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Hypathesized
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That the Earth's continents had once been joined together in a single land mass and had since drifted apart.
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Landforms
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lining up and fitting together, fossils, and climate
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Convergent
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A plant boundary where two plates move toward each other.
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Subduction
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thr process by which oceanic crust sink beneath a deep-ocean trench and back into the mantle at a convergent plate boundary
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Divergent
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A plate boundary where two plates move away from each other.
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Transform Boundary
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A plate boundary where two plates move past ech other in opposite directions.
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Volcanoes
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Most volcanoes occur along diverging plate boundaries such as the mid ocean ridge, or in subduction zones around the edges of oceans.
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Hot Spot
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Magma from the mantle melts through the crust not at plate boundaries.
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Ring of Fire
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A major belt of volcanoes that rims the pacific ocean.
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Earthquakes
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A shaking in the earth's crust caused by a release of energy.
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