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Isthmus Isthmus of Panama A narrow strip of land connecting two larger pieces of land.

Fjord a narrow inlet of the sea between cliffs or steep slopes. Large yacht

Continental Divide (Water shed) A high point of land from which water flows is different directions.

Peninsula A strip of land surrounded by water on three sides.

Lake A large body of water surrounded by land on all sides

Gulf A part of the ocean that is partly surrounded by land Gulf of Mexico

Ocean A large body of salt water that surrounds a continent Pacific Ocean

Strait A narrow body of water that connects two larger bodies of water Strait of Gibraltar

Coastline The boundary between land and water

Bay Part of the sea partly enclosed by a curve in the land. Cape Cod Bay

Cliff A high, steep, face of rock.

Relief The difference between the highest and lowest elevations in an area.

Plateau A flat area of land that is higher than the land around it.

Hill A raised mound of land

MOUNTAIN Land that rises sharply from surrounding land

Mountain Range A series of connected mountains

Valley Area of low land between hills or mountains

Volcano Mountain or hill created from the release of magma.

Plain Area of level land often covered with grasses.

Canyon A deep valley with steep sides carved by a river.

Glacier Large mass of ice that carves through earth.

A flowing body of water which empties in an ocean. River

Tributary Smaller rivers that feed into a large river.

Sea A large body of salt water often connected to an ocean. Red Sea

Island A piece of land with water on all four sides.

A cluster or chain of islands Archipelago

Delta A mass of sediment deposited at the mouth of a river.

Prairie Flat Grasslands of the North American Plains.