crust - The outer layer of the earth that we are standing on, split into Continental & Oceanic layers made of silicon, iron, magnesium, & calcium., mantle - the thickest layer of the earth below the crust, made of iron, magnesium, and calcium. More dense than the crust. , core - The center of the earth, this layer is made of iron & nickle., lithosphere - Solid outer layer of the earth, floating on the asthenosphere., asthenosphere - liquid layer of rock, has convection currents, which makes the lithosphere move, outer core - liquid layer of iron and nickle, very hot and dense, inner core - solid layer in the center of the earth, extremely hot and dense,




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