EOWCH2S1

Which of these layers is the deepest?

• Crust

• Outer core

• Inner core

• Mantle

This layer is 50-100 km thick.

• Crust

• Outer core

• Inner core

• Mantle

This layer is 2850 km thick.

• Crust

• Outer core

• Inner core

• Mantle

This layer is 2253 km thick.

• Crust

• Outer core

• Inner core

• Mantle

This layer is 2415 km thick.

• Crust

• Outer core

• Inner core

• Mantle

At the center of the Earth is a dense solid _______of hot iron mixed with other metals and rock.

• core

• mantle

• crust

• magma

Surrounding the _____ is the _____, a layer of hot, dense rock about 1,770 miles (2,850 km) thick.

• core / mantle

• mantle / core

• crust / magma

• magma / crust

If you have seen photographs of an active volcano, then you have seen this melted rock called _____.

• core

• mantle

• crust

• magma

Earth’s upper layer is the _____, a thin rocky shell that forms the surface.

• core

• mantle

• crust

• magma

The crust includes ocean floors and seven large

land areas known as _____.

• plate tectonics

• faults

• continents

• Earthquakes