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| the layer of rock that forms earths outer surface |
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| the layer of hot solid material between earths crust and core |
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| a layer of molten iron and nickel that surrounds the inner core of the earth |
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| a dense sphere of solid iron and nickel at the center of the earth |
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| a rigid layer made up of the upper most parts of the mantle and crust |
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| a soft layer of the mantle on which the lithosphere floats |
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| a transfer of energy through space |
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| the transfer of heat by movement of a fluid |
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| the transfer of heat within or between a material or materials that are touching |
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| In 1910, a young German scientist that developed a hypothesis that all continents were once joined together. He called it continental drift. |
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| the name of the single land mass that broke apart 2 million years ago and gave rise to todays continents. |
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| a break in the earths crust where masses of rock slip past each other |
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| the process by which oceanic crust sinks beneath a deep ocean trench and back into the mantle at a convergent plate boundary |
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| a plate boundary where two plates move toward each other. |
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| a plate boundary where two plates move away from each other |
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| a plate boundary where 2 plates move past each other in opposite directions. |
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