| A | B |
| Archipelago | a group of islands |
| Basin | an area of land around a river, water from this land drains into the river |
| Bay | a body of water partly enclosed by land, (a bay is usually smaller than a gulf) |
| Canyon | a deep narrow valley with steep sides |
| Cape | a cape is a pointed piece of land that sticks out into a sea, ocean, lake, or river. |
| Cliff | high steep rocks |
| Coast | land along a lake, sea, or ocean |
| Delta | land formed at the mouth of a river made up of mud, sand, and small rocks. Mouth-the part of a river where it empties into another body of water |
| Desert | a large area that receives very little rainfall |
| Dune | a sand hill made by the wind |
| Glacier | a large mass of ice |
| Gulf | a large area of the sea or ocean that is partly surrounded by land |
| Harbor | a sheltered area of water where ships can safely anchor |
| Hill | a raised area of land, smaller than a mountain |
| Island | a piece of land surrounded by water |
| Isthmus | a narrow piece of land that joins two larger sections of land |
| Lake | an inland body of fresh water |
| Mesa | a hill or mountain with steep sides and a flat top |
| Mountain | a raised area of land, higher than a hill,often has steep rocky sides |
| Mouth | the part of a river where it empties into another body of water |
| Oasis | a place in the desert where there is water and plants and trees grow |
| Ocean | a large body of water separating continents, oceans are saltwater |
| Peninsula | a piece of land that sticks out from a larger land mass and is almost completely surrounded by water |
| Plain | a large flat area of land |
| Plateau | a large area of high, flat land |
| River | a large body of fresh water that moves from higher to lower land. A river usually flows into another river, lake, sea, or ocean |
| Sea | a large body of water, partly or entirely surrounded by land. It is larger than a lake and has saltwater. |
| Source | the place where a river or stream starts |
| Strait | a narrow strip of water that connects two larger bodies of water |
| Tributary | a stream or river that flows into a larger stream or river |
| Valley | an area of low lying land between hills and mountains |
| Volcano | an opening in a mountain or hill that ay erupt or has erupted with lava, gases, and ash |