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Layers of the Earth

TermDefinition
Continental Crust The Earth's outer layer of rock that composes the continents (made of granite)
Oceanic Crust The Earth's layer of rock which composes the dense basalt ocean floor
Lithosphere The combination of the crust and the rigid, uppermost mantle that moves as a unit; divided into plates
Magma Molten material found beneath Earth's surface
Convection Current Circular motions in the Earth's mantle caused by the rising and falling of molten material that is undergoing changes in temperature and density
Mantle The middle layer of the Earth found between the crust and the core; composed of hot, solid rock (mantle = middle)
Asthenosphere The weaker upper portion of the Earth's mantle
Inner Core The dense innermost layer of Earth composed of solid iron and nickel
Outer Core The layer of Earth composed of liquid nickel and iron
Density The ratio of mass of a substance to the volume of a substance
Pressure The force applied perpendicular to the surface of an object
Composition The chemical make-up of a rock, mineral, or other substance
Created by: rebekahlyons