Valley
Ocean ridge
Delta
Peninsula
Plain
Continental slope
Archipelago
Ocean trench
Depression
Beach
Hill
Cliff
Mountain range
Estuary
Cape
Bay
Abyssal plain
Gulf
Continental shelf
Island
Plateau
Isthmus
Mountain
A group of islands
Underwater plateau that surrounds a continent
Area of land that is almost entirely surrounded by water
Area of low land between mountains
Steep rock coastal formation
High, raised plain
Strip of land connecting a peninsula to a continent
Vast plateau that forms part of the ocean floor
Area of sands or stones next to the sea
Long, deep crack in the ocean floor
Group of mountains coneccted to each other
A flat, triangular area of land between branches of the mouth of a river
Long mountain ridge in the abyssal plain
A natural elevation of the earth's surface, smaller than a mountain
Portion of the sea that is partly enclosed by land
The part of the mouth of a river in which its current meets the sea's tide
High landform with steep sides
An area lower than the surrounding surface
Strip of land that extends into the sea
Steep slope that leads down from the continental shelf into the deepest part of the ocean
A small gulf
Area of land completely surrounded by water
Low, flat area of land