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science crossword

student: malik vestwalton
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Across
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The outer most rigid layer of the earth that consists of the crust and uppermost part of the mantle
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A rigid slab of the lithosphere that moves on top the asthenosphere
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The plates slide past each other usually the site of earthquakes
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The field that extends from earths interior due to the iron and nickel in the earths core
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The boundary between two plates that move away from each other
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The process of which new oceanic crust forms along mid ocean ridges and older oceanic crust moves away from the ridge
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The middle layer of the earth that displays convection
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The man who came up with the continental drift theory
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The theory that the earths surface is broken into large rigid plates that move with respect to each other
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The partially molten layer of the mantle on which tectonic plates of the lithosphere move
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Two continents approach each other and collide
Down
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The central spherical part of earth
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Name given to the super continent believed to have broken apart 2000 million years ago
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The movement of earths continents over time
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The thin outermost layer of the lithosphere
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Two oceanic plates slide converse
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When a more dense plate moves behind a less dense and more buoyant plate