| Term | Definition |
| bay | part of a sea or lake that is partly surrounded by land |
| canyon | a deep narrow valley having high steep sides |
| cape | a narrow part of land along a shore that sticks out into the water |
| delta | land made by the soil that drops from a river at its mouth and places it near where it meets the sea |
| desert | land in which there is little rain fall, little plant life and little growth |
| divide | the highest land that separates two river basins |
| harbor | sheltered body of water where ships are safe from high winds |
| island | a body of land surrounded completely by water |
| lake | a body of water completely surrounded by land |
| mountain | land that rises much higher than the land at its base |
| mountain range | A row of mountains that are joined together |
| peninsula | A land area that is surrounded on all sides by water except for where it is connected to larger land |
| plateau | A large land area that is high and generally very flat |
| plain | A large body of relatively flat land |
| reservoir | A large artificial body of water used to store water to water plant life (irrigation) or in the generation of hydroelectric power |
| river | A large body of fresh water that starts at a source in high land and moves to lower land, carrying water to its mouth |
| sound | A long wide body of water connecting two larger bodies of water |
| tributary | A stream or smaller river that flows into a larger river |
| valley | Low lying land between hills or mountains |
| gulf | A large area if sea or ocean that lies within a curved coast line |