Large bodies of salt water that surround a continent.

An area of land that is entirely surrounded by water.

A deep valley with very steep sides.

A flat region of lowlands. Occurs at the bottoms of valleys.

Large bodies of saltwater that are often connected to an ocean.

Small, flowing bodies of fresh water that flow into rivers.

A place on Earth’s surface where the land is much higher than the land that surrounds it.

A lowland area between higher areas such as mountains.

Large, flowing bodies of freshwater that usually empty into a sea or ocean.