Earth's Layers

Front

What are the layers of the Earth in order from the outermost to the innermost?

Back

Crust, mantle, outer core, inner core.

Front

What is the outermost layer of the Earth?

Back

Crust.

Front

What is the mantle?

Back

The layer of the Earth between the crust and the outer core, characterized by its semi-solid rock and convection currents.

Front

What is the outer core?

Back

The layer of the Earth beneath the mantle, composed of liquid iron and nickel.

Front

What is the inner core?

Back

The innermost layer of the Earth, composed of solid iron and nickel.

Front

What causes seismic waves?

Back

Seismic waves are caused by earthquakes.

Front

How do scientists learn about the Earth's interior?

Back

They track seismic waves as they travel through the Earth.

Front

What is the temperature like in the mantle compared to the crust?

Back

The mantle has a higher temperature than the crust.

Front

What is the density of the mantle compared to the crust?

Back

The mantle has a higher density than the crust.

Front

What is the thickness of the mantle compared to the crust?

Back

The mantle is thicker than the crust.