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vocabulary
febuary 24 2014
Term | Definition |
---|---|
lithosphere | a rigid layer made up of the uppermost part of the mantle and the crust. |
crust | the layer of rock that forms earth's outer surface. |
mantle | the layer of hot;solid materals between earths crust and core. |
asthenosphere | the soft layer of the mantle on which the lithosphere floats. |
outer core | a layer of molten iron and nickel that surrounds the inner core of earth. |
inner core | a dense sphere of solid iron and nickel at the center of earth. |