The Earth's Four Main Layers: Crust

Front

What are the four main layers of the Earth?

Back

Crust, Mantle, Outer Core, Inner Core.

Front

What is the Earth's crust?

Back

The outermost layer of the Earth, composed of solid rock.

Front

What does the Earth's outer core create?

Back

Earth's magnetic field.

Front

What is the outer core mostly made of?

Back

Liquid metal (mostly iron and nickel).

Front

What is the mantle?

Back

The layer between the crust and the outer core, composed of semi-solid rock.

Front

What is convection in the context of the Earth's layers?

Back

The movement of heat within the mantle that creates currents.

Front

What happens to pressure as we go deeper into the Earth?

Back

Pressure increases with depth.

Front

What is the inner core?

Back

The innermost layer of the Earth, composed of solid iron and nickel.

Front

How does the outer core contribute to Earth's magnetic field?

Back

The movement of liquid metal in the outer core generates electric currents, creating the magnetic field.

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.