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20 Cards in this Set
- Front
- Back
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The composition of the inner core |
Iron & nickel |
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The main rocks that make up oceanic and continental |
Basalt and granite |
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The layer of the mantle below the lithosphere |
Astenosphere |
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Where is the thickest layer of the crust located |
Under the mountains |
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What materials make up the lithosphere |
Upper mantle and crust |
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What layer is below the continental crust |
Mantle |
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Of the 4 layers which is thinnest and has the lowest density |
Crust |
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Which layer of earth is thickest |
Mantle |
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Why is the mantle more dense than the crust |
Density rises from the pressure building |
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List the layers from top down |
Crust,mantle,outer core, inner core |
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The process in which the ocean flow sinks below a trench and back into the mantle |
Subduction |
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This causes the movement of tectonic plates |
Convection |
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Where do mountains normally occur |
Convergent boundaries |
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What causes the movement of tectonic plates |
Convection currents |
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What causes the forming of mountains and volcanoes along the edge of a continent |
Oceanic plate is subducted |
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What type of boundary occurs at the ring of fire in the Pacific Ocean |
Convergent |
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What evidence helped scientists prove we broke apart from pangea |
Fossils and rocks |
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Plates that slide past each other with little or no up and down movement are what kind of boundary |
Transform |
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Plates that move away from each other are what kind of boundary |
Divergent |
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The movement of continents away from each other is called |
Plate tectonics |
