Earth's Interior Layers

Front

What are the layers of the Earth?

Back

The Earth has four main layers: the crust, mantle, outer core, and inner 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?

Back

The layer beneath the crust is called the mantle.

Front

What is the state of matter of the outer core?

Back

The outer core is in a liquid state.

Front

What is the innermost layer of the Earth?

Back

The innermost layer of the Earth is called the inner core.

Front

What is the mantle made of?

Back

The mantle is made of solid rock that can flow slowly.

Front

What is the difference between the inner core and outer core?

Back

The inner core is solid, while the outer core is liquid.

Front

What is the composition of the Earth's crust?

Back

The Earth's crust is composed mainly of rocks and minerals.

Front

What is the asthenosphere?

Back

The asthenosphere is a semi-fluid layer within the upper mantle that allows tectonic plates to move.

Front

How thick is the Earth's crust?

Back

The Earth's crust is about 5 to 70 kilometers thick.