| A | B |
| Elevation | height above sea level |
| Plain | low-lying stretches of flat or gently rolling land |
| Plateau | flat land with higher elevation than a plain |
| Isthmus | narrow piece of land that connects two larger pieces of land |
| Peninsula | piece of land with water on three sides |
| Island | body of land smaller than a continent and surrounded by water |
| Continental Shelf | plateau off each coast of a continent that lies under the ocean and stretches for several miles |
| Trench | valley in the ocean floor |
| Strait | narrow body of water between two pieces of land |
| Channel | of water wider than a strait between two pieces of land |
| Delta | area formed from a soil deposit located at the mouth of a river |