Layers of the Earth ELL

Front

Earth's thinnest layer

Back

Crust

Front

This part of the core is solid

Back

Inner core

Front

This layer of the Earth is liquid

Back

Outer core

Front

What is the temperature at 2,900 km below Earth's surface?

Back

3,000 K

Front

Earth's thickest layer

Back

Mantle

Front

What is the composition of the Earth's crust?

Back

Primarily composed of rocks and minerals, mainly silicates.

Front

What is the main characteristic of the mantle?

Back

It is semi-solid and can flow slowly over time.

Front

What is the outer core primarily made of?

Back

Liquid iron and nickel.

Front

What is the temperature of the inner core?

Back

Approximately 5,000 to 7,000 K.

Front

What is the depth of the mantle?

Back

Extends from about 35 km to 2,900 km below the Earth's surface.