Freshwater Review

glacier

a huge mass of ice and snow that moves slowly over land

lake

a body of fresh or salt water of considerable size, surrounded by land

iceberg

form when a glacier breaks off and falls into the ocean and floats away

pond

a body of water smaller than a lake

watershed

the land area that supplies water to a river system

wetland

an area of land that is covered with a shallow layer of water during some or all of the year

river

a natural stream of water of fairly large size flowing in a definite course or channel or series of diverging and converging channels

ocean

the vast body of salt water that covers almost three fourths of the earth's surface