1. Basin
An area that is lower than surrounding land areas; can be filled with water

2. A part of a larger body of water that extends into the land
Bay
A part of a larger body of water that extends into the land

3. A small, high, flat topped landform with cliff like sides
Butte
A small, high, flat topped landform with cliff like sides

4. Canyon
A deep, narrow valley with steep sides; often has a stream flowing through it

5. A large waterfall or steep rapids
Cataract
A large waterfall or steep rapids

6. Delta
A plain at the mouth of the river, often triangular in shape, formed when material is deposited by flowing water

7. Flood Plain
A broad plain on either side of a river, formed when sediment settles during floods

8. A huge, slow moving mass of snow and ice
Glacier
A huge, slow moving mass of snow and ice

9. An area that rises above surrounding land and has a rounded top
Hill
An area that rises above surrounding land and has a rounded top

10. An area of land completely surrounded by water
Island
An area of land completely surrounded by water

11. A narrow strip of land that connects two larger areas of land
Isthmus
A narrow strip of land that connects two larger areas of land

12. A high, flat topped landform with cliff like sides
Mesa
A high, flat topped landform with cliff like sides

13. Mountain
A landform that rises steeply at least feet above surrounding land, usually wide at the bottom and rising to a narrow peak or ridge

14. A gap between mountains
Mountain Pass
A gap between mountains

15. Peninsula
An area of land almost completely surrounded by water and connected to the mainland by a narrow strip of land

16. A large area of flat or gently rolling land
Plain
A large area of flat or gently rolling land

17. Plateau
A large, flat area that rises above the surrounding land; at least one side has a steep slope

18. The point where a river enters a lake or sea
River Mouth
The point where a river enters a lake or sea

19. A narrow stretch of water that connects two larger bodies of water
Strait
A narrow stretch of water that connects two larger bodies of water

20. A river or stream that flows into a larger river
Tributary
A river or stream that flows into a larger river

21. Valley
A low stretch of land between mountains or hills, land that is drained by a river

22. Volcano
An opening in Earth’s surface through which molten rock, ash, and gases from Earth’s interior escape