Layers of the Earth

Front

What is the thinnest layer of the Earth?

Back

The crust is the thinnest layer of the Earth.

Front

How do scientists determine what Earth’s interior looks like?

Back

Scientists use seismic waves to determine the structure of Earth's interior.

Front

Which layer of the Earth has the greatest density?

Back

The inner core has the greatest density.

Front

Which layer of Earth is best described as liquid metal?

Back

The outer core is best described as liquid metal.

Front

What two layers make up the core of the Earth?

Back

The core is made up of the inner core and outer core.

Front

What is the outermost layer of the Earth called?

Back

The outermost layer of the Earth is called the crust.

Front

What is the layer beneath the crust called?

Back

The layer beneath the crust is called the mantle.

Front

What is the primary composition of the inner core?

Back

The inner core is primarily composed of solid iron and nickel.

Front

What is the primary composition of the outer core?

Back

The outer core is primarily composed of liquid iron and nickel.

Front

What is the role of seismic waves in understanding Earth's layers?

Back

Seismic waves help scientists infer the composition and state of Earth's layers.