Layers of the Earth

Front

What are the four main layers of the Earth?

Back

Crust, Mantle, Outer Core, Inner Core.

Front

What is the outermost layer of the Earth called?

Back

Crust.

Front

What layer lies beneath the crust?

Back

Mantle.

Front

What is the layer made mostly of liquid iron and nickel?

Back

Outer Core.

Front

What is the center layer of the Earth?

Back

Inner Core.

Front

What is the main component of the Earth's crust?

Back

Solid rock.

Front

What is the temperature like in the inner core?

Back

Extremely hot, reaching up to 9,932°F (5,500°C).

Tags

NGSS.HS-ESS2-3

Front

What is the difference between the outer core and the inner core?

Back

The outer core is liquid, while the inner core is solid.

Tags

NGSS.HS-ESS2-3

Front

What is the mantle made of?

Back

Semi-solid rock that flows slowly.

Front

How thick is the Earth's crust?

Back

About 5 to 70 kilometers thick.