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10 Cards in this Set
- Front
- Back
- 3rd side (hint)
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The Earth's outer shell is called the ______.
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crust
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The crust and the topmost layer of the mantle form the ______.
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lithosphere
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None |
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The Earth's crust is divided into large pieces called ______ plates.
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continental
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The theory of ______ ______ explains how the continental plates move and what happens at their boundaries.
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plate tectonics
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If two continental plates move apart, ______ or molten rock, comes up, cools, and forms new rock.
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magma
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If two continental plates collide, either both will rise up or one may be ______ underneath the other.
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pushed
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Continental plates can also slide ______ against one another.
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sideways
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If you look at a world map, the continents look as if they could fit together like a ______.
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puzzle
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Most scientists think the continents were once one massive land formation called ______.
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pangaea
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Is the Atlantic Ocean getting wider or narrower?
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wider
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