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The Earth's Structure

Teacher: Panik Lillian Olson
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Across
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Process that breaks surface rocks into boulders, gravel, sand, and soil
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Uppermost layer of the earth
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Giant slow-moving sheets of ice
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Center of the Earth
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Theory that the earth's crust is not an unbroken shell but consist of plates, or huge slabs of rock, that move.
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Rock layer about 1,800 miles thick between the core and the crust
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Huge sea wave caused by an earth-quake on the ocean floor
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Crack in the earth's crust
Down
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Violent and sudden movement of the earth's crust
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Process of moving weathered material on the earth's surface
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Massive land area
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Hot melted rock that sometimes flows to the earth's surface in a volcanic eruption