A landform with high elevation and steep sides.
Mountain
A place where water flows over a cliff.
Waterfall
An area of low land between two mountains or hills
Valley
A natural stream of water larger than a brook or creek.
River
An area that contains a chain or group of islands scattered in lakes, rivers, or the ocean.
Archipelago
A mound of raised land that us smaller than a mountain. Usually formed when mountains wear away
Hill
The major bodies of saltwater that cover large parts of the Earth.
Ocean
Cone shaped mountain with an opening into the Earth. Molten rock and ash come out of it.
Volcano
A body of water that is surrounded by land.
Lake
A narrow sea channel
Strait
A large piece of land that is surrounded by water on three sides.
Peninsula
An area of land that is completely surrounded by water.
Island
A large underwater mountain range.
Oceanic Ridge
A steep incline of the ocean floor leading down from the edge of the continental shelf
A large crack in the Earth formed by a river or earthquakes.
Canyon
A large low area of flat land that is often grassy.
Plain
Flat area of the ocean floor at a depth of between 3,000 and 7,000 meters
Abyssal Plain
A part of the coastline that extends into the sea.
Cape
A long narrow deep depression in the ocean floor
Oceanic Trench
A partially enclosed, coastal water body where freshwater from rivers and streams mixes with salt water from the ocean.
Estuary
A large area of flat land that is raised higher than the land around it.
Plateau
Bay
A narrow strip of land that connects two larger areas of land.
Isthmus
An area of a sea or ocean partially enclosed by land, larger than a bay
Gulf
A fertile or green area in an arid region. (such as a desert)
Oasis