Earth Layers

Front

What is the thinnest layer of the Earth?

Back

Crust

Front

What is the layer of the Earth identified as letter A in a diagram?

Back

Mantle

Front

Which layer of the Earth extends to 2,900 km deep?

Back

Mantle

Front

Which layer of the Earth is characterized by rock that is plastic and can flow?

Back

Asthenosphere

Front

Which layer of the Earth has the greatest density?

Back

Inner Core

Front

What are the two main types of Earth's crust?

Back

Continental crust and Oceanic crust

Front

What is the layer of the Earth that lies directly beneath the crust?

Back

Mantle

Front

What is the outermost layer of the Earth called?

Back

Crust

Front

What is the layer of the Earth that is solid and rigid?

Back

Lithosphere

Front

What is the layer of the Earth that is semi-fluid and allows tectonic plates to move?

Back

Asthenosphere