| A | B | 
|---|
| canyon | a deep valley with steep sides | 
| continent | one of the seven great land masses | 
| desert | a region of little rainfall where few plants and animals live | 
| forest | a large area of land covered with trees and other plants | 
| glacier | a large mass of ice that moves very slowly down a mountain or through a valley | 
| gulf | a large body of salt water that is partly enclosed by land | 
| hill | a raised part of the earth's surface that is lower than a mountain | 
| island | a piece of land that is surrounded by water | 
| lake | an inland body of fresh or salt water | 
| mountain | a high area of land with steep sides and a sharp peak | 
| ocean | the body of salt water that covers most of the earth | 
| plain | a large, low area of flat or rolling land with few trees | 
| plateau | a flat area of land that is higher than the land around it | 
| river | a long body of water that flows over land | 
| valley | an area of low land between mountains or hills | 
| bay | body of water that extends into the land | 
| tributary | a small river or stream that flows across the land and usually empties into a lake, ocean or other river | 
| basin | a low bowl-shaped landform surrounded by higher land | 
| coast | land along an ocean or a sea | 
| harbor | a protected place along a shore where ships can safely anchor |