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14 Cards in this Set
- Front
- Back
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Idea that the continents slowly moved over Earths surface |
Continental Drift |
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Supercontinent |
Pangaea |
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Any trace of an ancient organisms that has been preserved in a rock |
Fossil |
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Mid ocean ridges |
Form long chains of mountains that rises yo from the ocean floor |
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Spreading continually add new materials to ocean floor |
Sea floor spreading |
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Taking ten years or million of years part of the ocean floor sinks into the mantle |
Deep ocean trenches |
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The ocean floor sinks beneath a deep ocean trench and back into the mantle |
Subduction |
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Broken into pieces separated by cracks |
Plates |
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Plates move apart or diverge |
Divergent boundary |
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Plates come together |
Convergent plates |
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Plates slip past each other |
Transform boundary |
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Breaks in earths crust where rocks have slipped past each other |
Faults |
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Deep valley |
Rift Valley |
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Earths plates are in slow, constant motion, driven by convection currents in the mantle |
Plate tectonics |
