Earth's Layers Vocabulary

Front

Crust

Back

Earth's outermost layer.

Front

Mantle

Back

The layer of the Earth between the crust and the core.

Front

Outer Core

Back

A layer of molten iron and nickel that surrounds the inner core of the Earth.

Front

Inner Core

Back

A dense sphere of solid iron and nickel at the center of the Earth.

Front

Lithosphere

Back

A rigid layer made up of the uppermost part of the mantle and the crust.

Front

Asthenosphere

Back

The soft layer of the mantle on which the lithosphere floats.

Front

Seismic Waves

Back

Vibrations that travel through the Earth carrying the energy released during an earthquake.