| A | B |
|---|
| basin |  |
| bay |  |
| canyon |  |
| cape | |
| channel |  |
| coastal plain |  |
| delta |  |
| fall line |  |
| glacier |  |
| gulf |  |
| inlet |  |
| isthmus |  |
| marsh |  |
| mesa |  |
| mountain pass |  |
| mountain range |  |
| mouth of river |  |
| peninsula |  |
| plain |  |
| plateau |  |
| savanna |  |
| sea level |  |
| source of river |  |
| strait |  |
| swamp |  |
| tributary |  |
| volcano |  |
| basin | bowl-shaped area of land surrounded by higher land |
| bay | inlet of the sea or of some other body of water, usually smaller than a gulf |
| canyon | deep, narrow valley with steep sides |
| cape | point of land that extends into water |
| channel | deepest part of a body of water |
| coastal plain | area of flat land along a sea or ocean |
| delta | triange-shaped area of land at the mouth of a river |
| fall line | area along which rivers form waterfalls or rapids as the rivers drop to lower land |
| glacier | large ice mass that moves slowly down a mountain or across land |
| gulf | part of a sea or ocean extending into the land, usually larger than a bay |
| inlet | any area of water extending into the land from a larger body of water |
| isthmus | narrow strip of land connecting two larger areas of land |
| marsh | lowland with moist soil and tall grasses |
| mesa | flat-topped mountain with steep sides |
| mountain pass | gap between mountains |
| mountain range | chain of mountains |
| mouth of river | place where a river empties into another body of water |
| peninsula | land that is almost completely surrounded by water |
| plain | area of flat or gently rolling low lands |
| plateau | area of high, mostly flat land |
| savanna | area of grassland and scattered trees |
| sea level | level of the surface of an ocean or a sea |
| source of river | place where a river begins |
| strait | narrow channel of water connecting two larger bodies of water |
| swamp | area of low, wet land with trees |
| tributary | stream or river that flows into a larger stream or river |
| volcano | opening in the earth, often raised, through which lava, rock, ashes, and gases are forced out |
