| A | B |
|---|
| seas | large bodies of water partially surrounded by land |
| gulfs | large bodies of water partially surrounded by land |
| bays | small bodies of water partially surrounded by land |
| strait | thin, narrow body of water that connects two larger bodies of water |
| harbor | body of water that is protected and deep enough to provide anchorage for ships |
| channel | narrow body of water, larger than a strait, that connects two larger bodies of water |
| lakes | bodies of water completely surrounded by land |
| tributaries | streams and rivers that flow into larger rivers |
| river system | a river and all of its streams |
| source | beginning of a river |
| mouth | the end of a river |
| delta | triangle shaped mouth of a river |
| isthmus | thin, narrow strip of land that connects two larger land masses |
| islands | land completely surrounded by water |
| archipelago | group or chain of islands |
| peninsula | land surrounded on three sides by water |
| cape | finger of land reaching out to sea |
| mountains | high rugged landforms |
| hills | smoother and smaller than mountains |
| plains | area of level or rolling land |
| plateau | level area at high elevation - may have steep sides |
| valley | gradually sloped area between mountains or hills |
| canyon | steeply sloped area between mountains or hills |
| gorge | a small canyon |
| mesa | a small plateau |
| sea level | height of the oceans |
| ravine | a steep narrow valley |
| ridge | a long narrow hill |
