The study and description of features on Earth.

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A low area of land between hills or mountains.

• Mountain

• Desert

• Valley

• Stream

A large natural stream of water flowing in a channel to the sea or a lake.

• River

• Waterfall

• Ocean

• Lake

A deep gorge, typically one with a river flowing through it.

• Forest

• Cliff

• Desert

• Canyon

A cascade of water falling from a height, formed when a river or stream flows over a steep incline.

• River

• Waterfall

• Stream

• Ocean

A vast body of salt water that covers almost three fourths of the earth's surface. (five of them)

• Ocean

• River

• Stream

• Lake

A place that gets little to no rain, is usually flat and has no vegetation.

• Forest

• Valley

• Canyon

• Desert

A large open area of land covered with grass.

• Canyon

• Forest

• Grassland

• Cliff

A large area covered with trees and undergrowth.

• Canyon

• Valley

• Forest

• Desert

A large body of water surrounded by land.

• Lake

• Ocean

• River

• Stream