| A | B | 
|---|
| Bay | part of an ocean or lake partly enclosed by land | 
| Butte | raised,flat area of land with steep sides | 
| Mesa | wide,flat topped mountian larger than a butte | 
| Cataract | large,powerful waterfall | 
| cape | pointed landform extending into an ocean or lake | 
| canyon | deep valley with steep sides | 
| cliff | steep almost vertical edge of a hill, mountain or plain | 
| desert | dry area where few plants grow | 
| delta | triangular land formed from deposits at the mouth of a river | 
| flood plain | flat land next to a river, formed by mud deposited by floods | 
| glacier | large ice mass that moves slowly down a mountain or over land | 
| harbor | sheltered area of water,deep enough for ships | 
| island | a body of land surrounded by water | 
| marsh | soft, wet low lying grassy area located between water and dry land | 
| mountain | elevation of earth with steep sides, higher than a hill | 
| plateau | broad, flat area of land higher than the surrounding land | 
| prairie | large, level area of grassland with few trees | 
| river mouth | place where a river flows into a lake or ocean | 
| sea level | level of ocean's surface used to measure height and depths on earth's surface | 
| steppe | wide, treeless plain | 
| swamp | area that is wet or covered with water | 
| valley | lowland between hills or mountains | 
| volcano | opening in earth's surface where  gases and lava escape | 
| oasis | a spot of fertile land in a desert that has water | 
| strait | a narrow strip of water connecting 2 large bodies of water |