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19 Cards in this Set
- Front
- Back
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The composition of the inner core? |
Nickel and iron |
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The main rocks that make up the oceanic and Continental crust are? |
Basalt and granite |
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The layer of the mantal below the lithosphere? |
Astenosphere |
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Where is the thickest layer of the crust is located? |
Under continents |
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What materials make up the lithosphere? |
Crust and mantle |
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What layer is below the continental crust? |
Mantle |
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Of the four layers of earth,which layer is the thinnest and has the lowest density? |
Crust |
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Which layer of earth is the thickest? |
Mantle |
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Why is the mantle more dense than the crust? |
Magnesium |
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List the layers of the Earth in order from the top down |
Crust,mantle,inner,outer,core |
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The process in which the ocean flow sinks below deep ocean trench and back into the mantle? |
Subduction |
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Where do mountains normally occur? |
Convergent boundary |
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What causes the movement of tectonic plates? |
Convection current |
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What causes the forming of mountains and volcanos along the edge of a continent? |
Convergent boundary |
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What type of plate boundary occurs at the "ring of fire" in the Pacific Ocean? |
Convergent |
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What evidences have scientists collected that proves that breaking apart of pangaea? |
Fossils and rocks and puzzles |
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Plates that slides past each other with little or no up or down movement are what 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? |
Continental drift |
