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17 Cards in this Set
- Front
- Back
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crust |
Top layer of earth made out of rocks 6-60 km |
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mantle |
2nd layer made out of hot metals 2,900 km |
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outer core |
3rd layer 2,300 km thick mode out of liquid metals |
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inner core |
4th layer 2,400 km thick made out of solid metals |
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Plate tectonics |
is a theory that all the Continent where together one time and drifted away from each other |
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Convection currents |
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Alfred Wagner |
He had a theory that all the continets were together |
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Density |
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Pangaea |
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Layers of Earth |
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States of matter |
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lithosphere |
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Asthenosphere |
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Plate tectonics |
Fossils, climate and geology |
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Sea floor spreding |
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mid ocean ridge |
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plate boundary |
