LAYERS OF THE EARTH
Layers in Order 1. Crust 2. Mantle 3. Lower Mantle 4. Outer Core Lithosphere Asthenosphere 3. Lower Mantle 4. Outer Core 5. Inner Core
Crust The Earth’s crust is like the skin of an apple. It is very thin compared to the other three layers. The crust makes up 1% of the Earth. The crust of the Earth is broken into many pieces called plates. 5 to 25 miles thick and up to 1,600 F Two types of crust Oceanic and Continental
Crust Cont.… Lithosphere Asthenosphere (part of the mantle) Rigid outer layer of the crust Part of the crust/mantle Asthenosphere (part of the mantle) Solid to semi-solid rock layer The crust and plates glide on the asthenosphere
Mantle Upper Mantle Lower Mantle The mantle is the largest layer of the Earth. Consists of crystalline formations Asthenosphere is located above the mantle 1,800 miles thick and up to 8,000 F Lower Mantle Abundant in the following elements Silicon, Magnesium and Oxygen
Outer Core 1,400 miles thick and up to 11,000 F Liquid Layer Made of… Spins around the Inner Core Causes the Earth’s Magnetic Field Made of… Liquid Iron and Nickel Is very dense
Inner Core Solid Metal 800 miles thick and up to 13,000 F Made of.. Temperatures and pressures so great that the metals are squeezed together and are not able to move or melt. 800 miles thick and up to 13,000 F Made of.. Iron, Nickel and a few other metals