| A | B |
|---|
| Bay | part of an ocean or lake extending into the land and usually smaller than a gulf |
| Delta | a triangular deposit of sand and soil that collects at the mouth of some rivers |
| Gulf | part of an ocean extending into land and usually larger than a bay |
| Isthmus | a narrow strip of land with water on both sides, connecting two larger areas of land |
| Oasis | a fertile place in the desert where there is water and some vegetation |
| Strait | a narrow waterway connecting two large bodies of water |
| Tributary | a stream or river that flows into a larger stream or river |
| Canal | a waterway dug across land through which ships can pass through |
| Glacier | a huge mass of ice that moves slowly down a moutain |
| Island | an area completely surrounded by water |
| Lake | a large body of water surrounded by land |
| Mountain range | a row of connected mountains |
| Mouth of a river | the part of a river where its waters flow into another body of water |
| Peninsula | land surrounded by water on all sides but one |
| Plain | a broad and flat or gently rolling area usually low in elevation |
| Valley | low land between hills and mountains |
| Volcano | an opening in the earth's surface through which steam, ashes, and lava are forced out |
| Harbor | a sheltered area of water where ships can anchor safely |
| Desert | a dry region that may be sandy and without trees |
| Swamp | low, wet land that supports grass and trees |
