Earth's Layers

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 directly beneath the crust?

Back

Mantle.

Front

What is the composition of the outer core?

Back

Primarily liquid nickel and iron.

Front

What is the deepest layer of the Earth?

Back

Inner Core.

Front

What is the hottest layer of the Earth?

Back

Inner Core.

Front

What is the lithosphere?

Back

The lithosphere is composed of the crust and the upper part of the mantle.

Front

What is the main characteristic of the mantle?

Back

It is solid but can flow slowly over time.

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.

Front

How does heat transfer from the core to the surface?

Back

Through convection currents in the mantle.