1. LAYERS OF THE EARTH

2. Layers in Order 1. Crust 2. Mantle 3. Lower Mantle 4. Outer Core
Lithosphere
Asthenosphere
3. Lower Mantle
4. Outer Core
5. Inner Core

3. 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

4. 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

5. 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

6. 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

7. 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