| A | B |
|---|
| ocean | a large body of salty water |
| Gulf | a large part of the ocean that extends into land |
| Peninsula | an area of land that sticks out into a lake or ocean |
| Coral Reef | an ocean ridge made up of skeletal remains of tiny sea animals |
| Bay | part of a large body of water that is smaller than a gulf |
| Isthmus | a narrow piece of land connecting two larger land areas |
| Delta | an area where a river deposits soil into the ocean |
| Island | an area of land surrounded entirely by water |
| Strait | a narrow body of water connecting two larger bodies of water |
| Sinkhole | a circular depression formed when the roof of a cave collapses |
| Lake | a body of water surrounded by land |
| Forest | an area of densely wooded land |
| River | a natural flow of water that runs through the land |
| Wetland | an area of land covered by shallow water |
| Coast | an area of land near the ocean |
| Volcano | an opening in Earth's crust where lava, ash and gases erupt |
| Valley | an area of low land between hills or mountains |
| Glacier | a large area of slow-moving ice |
| Oasis | an area in the desert with a water source |
| Desert | an extremely dry area with little water and few plants |
| Plateau | a large, flat, elevated area of land |
| Plain | a nearly flat area |
| Dune | a hill of sand shaped by wind |
| Canyon | a deep, narrow valley with steep walls |
| Mountain | an area of rugged land that generally rises higher than 2000 ft. |
| Hill | a rounded, elevated area of land smaller than a mountain |
