Moving Continents

Front

Drift

Back

To slowly and gradually move.

Front

Continental Shelf

Back

Areas of a continent that are under shallow water.

Front

Fossil

Back

The naturally preserved remains, imprints, or traces of organisms that lived long ago.

Front

Mantle

Back

The middle layer of Earth, situated between the crust above and the core below.

Front

Separate

Back

To stop being together; separation.

Front

Skeptical

Back

To be doubtful about something.