| A | B |
|---|
| archipelago | a large group or chain of islands |
| atoll | a ring-shaped coral island or string of islands surrounding a lagoon |
| bay | part of an ocean, sea, or lake that extends into the land, usually smaller than a gulf |
| butte | a small, flat-topped hill, smaller than a plateau or mesa |
| canal | a waterway built to carry water for navigation or irrigation; usually connects to other bodies of water |
| canyon | a deep, narrow valley with steep sides |
| cape | a projeting part of a coastline that extends into an ocean, sea, gulf, bay or lake |
| cliff | a high, steep face of rock or earth |
| coast | land along an ocean or sea |
| delta | land formed at the mouth of a river by deposits of silt, sand, and pebbles |
| desert | a very dry area where few plants grow |
| fjord | a deep, narrow inlet of the sea between high, steep cliffs |
| foothills | a hilly area at the base of a mountain range |
| glacier | a large sheet of ice that moves slowly over some land surface or down a valley |
| gulf | part of an ocean or sea that extends into the land; usually larger than a bay |
| isthmus | a narrow strip of land bordered by water that connects two larger bodies of land |
| lagoon | a shallow body of water partly or completely enclosed within an atoll; a shallow body of sea water partly cut off form the sea by a narrow strip of land |
| lake | a body of water completely surrounded by land |
| mesa | a high, flat landform rising steeply above the surrounding land; smaller than a plateau and larger than a butte |
| mountain | a high, rounded or pointed landform with steep sides; higher than a hill |
| mountain range | a row or chain of mountains |
| mouth | the placd where a river empties into another body of water |
| oasis | a place in the desert made fertile by a steady supply of water |
| ocean | one of Earth's four largest bodies of water connected into a single body of salt water that covvers about three-fourths of Earth's surface |
| peninsula | a body of land nearly surrounded by water |
| plain | a large area of flat or nearly flat land |
| plateau | a high, flat landform that rises steeply above the surrounding land; larger than a mesa and a butte |
| reef | a ridge of sand, rock, or coral that lies at or near the surface of a sea |
| reservoir | a natural or artificial lake used to store water |
| river | a large stream of water that flows across the land and usually empties into a lake, ocean, or other river |
| river basin | all the land drained by a river and its tributaries |
| sea | a large body of water partly or entirely surrounded by land; another word for ocean |
| source | the place where a river or stream begins |
| strait | a narrow waterway or channel connecting two larger bodies of water |
| tributary | a river or stream that flows into a larger river or stream |
| valley | an area of low land between hills or mountains |
| volcano | an opening in the Earth through which lava, rock, gases, and ash are forced out |
| island | a body of land completely surrounded by water |
