| A | B |
|---|
| Archipelago | A group of islands |
| bay | part of a large body of water that extends into a shoreline, generally smaller than a gulf |
| canyon | a deep, narrow valley with steep sides carved out by water |
| cape | point of land that extends into a river, lake, or ocean |
| cliff | steep, high wall of rock, earth, or ice |
| continent | one of the seven large landmasses on the earth |
| delta | triangular area of marshland formed by deposits of silt at the mouth of some rivers |
| glacier | A large mass of moving ice and snow on land |
| gulf | part of a large body of water that extends into a shoreline, generally larger and more deeply indented than a bay |
| harbor | a sheltered place along a shoreline where ships can anchor safely |
| hill | elevated land with sloping sides and rounded summit; generally smaller than a mountain |
| island | land area, smaller than a continent, completely surrounded by water |
| isthmus | A narrow strip of land connecting two larger land areas |
| lake | a body of water surrounded by land |
| mesa | broad, flat-topped landform with steep sides; smaller than a plateau |
| mouth | (of a river) place where a stream or river flows into a larger body of water |
| oasis | small area in a desert where water and vegetation are found |
| ocean | one of the four major bodies of salt water that surround the continents |
| peninsula | body of land jutting out into an ocean or lake that is surrounded by water on three sides |
| plain | area of level land, usually at low elevation and often covered with grasses |
| plateau | A large area of flat land elevated high above sea level |
| river | large natural stream of water that runs through the land |
| sea | large body of water completely or partly surrounded by land |
| strait | a narrow body of water that connects two larger bodies of water |
| valley | an area of low land between hills or mountains |
| volcano | mountain or hill created as liquid rock and ash erupt from inside the earth |
| swamp, marsh | wet area where the water table is at or near the surface |
| sinkhole | When the ground collapses into a cavern in the ground, especially in limestone bedrock, caused by water erosion. Sometimes caused by draining the aquifer, or fresh groundwater, too low. |
| desert | An extremely dry area with little water and few plants |
| mountain | A landform with high elevation and high relief. |
| coastline | Where the land meets the sea |
| lake | a large body of water surrounded by land |
| sand dune | A deposit of wind-blown sand |
| sand bar | A long underwater ridge formed by sand deposited offshore |
| barrier island | a long ridge of sand or narrow island that lies parallel to the shore and protects the land from storms |
| oxbow lake | a crescent-shaped lake (often temporary) that is formed when a meander of a river is cut off from the main channel |
| cavern | a large cave of room size or larger |
