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| Made of dense iron; very hot and dense. |
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| Molten metal ABOVE the inner core. |
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| Solid; flows slowly and freely like putty. |
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| Outermost layer; thinnest. |
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| The Earth has ____ layers. |
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| The rigid upper part of the mantle and crust; sections of Earth's moving plates. |
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| Causes mountains to form as rock crumbles and folds. |
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| Occurs when a dense plate sinks under a less dense plate. |
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| The Plate Movement Theory |
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| Convection in the mantle circulates material and moves plates. |
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| Formed from huge tilted blocks of rock separated from surrounding rock by large faults. |
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| Formed by compression forces folding rock layers. |
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| Forces push up Earth's crust and allow the sedimentary rock to erode, leaving igneous or medimorphic rock. |
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| Layers of lava form this. |
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| Formed by plumes of magma in the mantle. |
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