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19 Cards in this Set
- Front
- Back
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Theory |
System if ideas that explains many reputed observations and is supported by evidence |
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Pangea |
Large super contient |
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Theory of plate tectonics |
Scientific theory about large scale motions of the earth |
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Continental drift |
Pangea broke up into diff and smaller masses |
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Seafloor spreading |
Seafloor spreads when lava touches it |
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Convention currents |
Transfer of heat by the mass movement into a cooler fluid |
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Lithosphere |
Solid outer shell of earth |
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Asthenosphere |
Layer of earth below lithosphere |
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Boundary |
Something that shows where an area ends and another begins |
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Divergent boundary |
Is a tectonic plates that push away from each other |
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Convergent boundary |
Tectonic plates that push together |
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Subduction zone |
More dense lithosphere move below less dense lithosphere |
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Transform boundary |
Tectonic plates that slide past each other |
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Crustal features |
Diff types of plate boundaris |
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Rift valley |
Crust pulls apart to form long and narrow valleys |
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Mid ocean ridge |
Underwater mountain ranges |
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Ring of fire |
Ring of volcanoes |
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Trench |
Deep depression of the seafloor |
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Fault |
Break or crack in earths surface |
