8Lies 4,000 miles below the surface of the earth. Believed to be solid. Inner CoreLies 4,000 miles below the surface of the earth.Believed to be solid.Consists of Iron and Nickel
9Outer CoreBegins about 1,800 miles below the surface of the earth.Made up of melted Iron and Nickel.
10MantleThick layer of dense, hot rock.The rock consists of silicon, oxygen, aluminum, iron, and magnesium.
11CrustThin layer, extending perhaps 3 to 30 miles below the surface.Consists of huge plate like sections of rock that float on a partially melted layer in the upper mantle.Includes the continents and ocean basins.