Unit 3 REVIEW

Front

What is the thickest layer of the Earth?

Back

The mantle.

Front

Which layer has the coolest temperatures?

Back

The crust.

Front

Which layer of the Earth is the coolest?

Back

Crust; Which layer is the hottest? Inner core.

Front

What is the outer core made of?

Back

Melted metal.

Front

Name two examples of nonrenewable resources.

Back

Coal and Oil.

Front

What is the Earth's crust?

Back

The outermost layer of the Earth, composed of solid rock.

Front

What is the mantle?

Back

The layer of the Earth between the crust and the outer core, made of semi-solid rock.

Front

What is the inner core?

Back

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

Front

What is the outer core?

Back

The layer of the Earth that is liquid and made of melted metal.

Front

What are renewable resources?

Back

Resources that can be replenished naturally, such as solar energy and wind.