Layers of the Earth

Front

What is the outermost layer of the Earth where humans live?

Back

Crust

Front

What layer of the Earth is liquid and generates the magnetic field?

Back

Outer Core

Front

How many major layers does the Earth have?

Back

4

Front

What is the layer beneath the crust called?

Back

Mantle

Front

What is the solid inner layer of the Earth called?

Back

Inner Core

Front

What is the primary composition of the Earth's crust?

Back

Silicate rocks and minerals

Front

What is the temperature range of the outer core?

Back

Approximately 4,000 to 6,000 degrees Celsius

Front

What is the primary function of the Earth's magnetic field?

Back

To protect the Earth from solar and cosmic radiation

Front

What is the thickness of the Earth's crust on average?

Back

About 30 kilometers (18.6 miles) beneath continents and about 5 kilometers (3.1 miles) beneath oceans

Front

What is the state of matter of the mantle?

Back

Solid, but behaves like a viscous fluid over long periods of time

Tags

NGSS.HS-ESS2-3