Layers of Earth and Crust

Earth Layers

The deeper you go inside the earth, the greater the temperature becomes.

4 Basic Layers

-Crust

-Mantle

-Outer Core

-Inner Core

Multiple Select

What are the three layers of the Earth?

• Crust

• Mantle

• Outer Core

• Inner Core

The Crust

• It is earth's outer, most coolest, and least dense layer.

• There is two types of crust: Continental Crust and Oceanic Crust

• Oceanic crust: lies beneath the ocean, and is 5 to 10 kilometers (3 to 6 miles) thick.

• Continental crust: contains mostly land, and is 15 to 70 kilometers (9 to 45 miles) thick, the thickest being under a mountain.

• There are areas known as Mid-ocean Ridges where oceanic crust is constantly being created.

The mantle is about 2,900 kilometers (1800 miles) thick, and the lithosphere and asthenosphere is in the mantle.