Earth's Layers Practice

Which TWO layers are thicker than the inner core?

• crust

• mantle

• outer core

• inner core

Which layer is the thinnest layer?

• inner core

• mantle

• outer core

• crust

This is the layer of Earth we live on. It is made of solid rocks and soil. What number represents this layer?

• 1

• 2

• 3

• 4

This is a solid ball made of iron and nickel. It is as hot as the surface of the sun. What number represents this layer?

• 1

• 2

• 3

• 4

According to the chart, which is the thickest layer?

• crust

• inner core

• outer core

• mantle

Using the diagram, which layer is labeled as letter B?

• outer core

• inner core

• crust

• mantle

Using the diagram, which layer is labeled as letter C?

• outer core

• inner core

• crust

• mantle

Why does the crust have a range in measurement, meaning the crust is not just ONE thickness?

• The crust's measurement includes the ocean water.

• The crust's measurement is based on the crust and the mantle.

• The crust's measurement is different because the crust is thicker under the ocean than the continents.

• The crust's measurement is different because the crust is thicker under the continents than the ocean.