Layers of the Earth

Front

What are the four main layers of the Earth?

Back

The four main layers of the Earth are the Crust, Mantle, Outer Core, and Inner Core.

Front

What is the outermost layer of the Earth called?

Back

The outermost layer of the Earth is called the Crust.

Front

Which layer of the Earth is primarily composed of solid rock?

Back

The Crust is primarily composed of solid rock.

Front

What is the composition of the Mantle?

Back

The Mantle is composed of semi-solid rock and magma.

Front

What is the state of matter of the Outer Core?

Back

The Outer Core is in a liquid state, primarily composed of molten iron and nickel.

Front

What is the temperature range of the Inner Core?

Back

The temperature of the Inner Core can reach up to 5,700 degrees Celsius (10,300 degrees Fahrenheit).

Tags

NGSS.HS-ESS2-3

Front

What geological process occurs in the Mantle?

Back

Convection currents occur in the Mantle, driving plate tectonics.

Front

Which layer of the Earth experiences the highest pressure?

Back

The Inner Core experiences the highest pressure.

Front

What is the significance of the Crust in relation to life on Earth?

Back

The Crust is significant because it is where all known life exists and contains the Earth's resources.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Front

How thick is the Earth's Crust on average?

Back

The Earth's Crust is about 5 to 70 kilometers thick, depending on whether it is oceanic or continental.