Layers of Earth

Front

What is the outer layer of the Earth called?

Back

Crust

Front

What is the layer beneath the crust?

Back

Mantle

Front

What is the composition of oceanic crust?

Back

It is primarily made of basalt.

Front

What is the difference between oceanic and continental crust?

Back

Oceanic crust is thinner and denser than continental crust.

Front

What is the outer core made of?

Back

Melted metal, primarily iron and nickel.

Front

What is the inner core made of?

Back

Solid iron and nickel.

Front

Which layer of the Earth has the hottest temperatures?

Back

Inner core.

Front

What is the mantle primarily composed of?

Back

Silicate rocks that are semi-solid.

Front

What is the main characteristic of the lithosphere?

Back

It includes the crust and the uppermost part of the mantle.

Front

What is the asthenosphere?

Back

A semi-fluid layer beneath the lithosphere that allows tectonic plates to move.