Activity 1: Earth Match-Up!

Directions: Match the layers to their definitions.

1. Lithosphere
A. Made up of the crust and a tiny bit of the upper mantle. This layer is divided up into constantly moving plates of solid rock that hold the continents and the oceans.

2. Outer Core
B. The only liquid layer of the earth, this layer is made up mostly of iron and nickel. It is located about 2000 miles below the surface.

3. Crust
C. The earth's outermost and thinnest layer. Hard and rigid and only a few miles thick under the oceans and averaging 20 miles thick under the continents.

4. Mantle
D. A dense layer subdivided into upper and lower regions made of hot, semisolid rock located directly below the crust and about 1,800 miles thick.

5. Asthenosphere
E. Hot, malleable semiliquid in the upper mantle on which the plates of the lithosphere float.

6. Inner Core
F. The innermost layer, extremely hot and solid, composed mostly of iron and nickel.