Across
- 7. a river or stream that flow into a larger river
- 8. an opening in Earth's surface through which molten rock, ash, and gases from Earth's interior escape
- 9. an area that is lower than the surrounding land areas some basins are filled with water
- 14. a gap between mountains
- 17. a large, flat area that rises above the surrounding land; at least on side has a steep slope
- 19. a small, high flat-topped landform with cliff-like sides
- 21. a part of a larger body of water that extends into the land
- 22. one of the five major bodies of salt water that surround the continents
- 23. a large area of flat or gently rolling land
- 24. the point where a river enters a lake or sea
Down
- 1. a low stretch of land between mountains or hills; land that is drained by a river
- 2. a plain at the mouth of a river, often triangular in shape, formed when material is deposited by flowing water
- 3. a narrow stretch of water that connects two larger bodies of water
- 4. a landform that rises steeply at least 2,000 feet (610 meter) above surrounding land; usually wide at the bottom and and rising to a narrow peak or ridge
- 5. a broad plain on either side of a river, formed when sediment settles down during floods
- 6. a high, flat-topped landform with cliff-like sides, larger than a butte
- 10. an area of land completely surrounded by water
- 11. a large waterfall or steep rapids
- 12. an area of land almost completely surrounded by water and connected to the mainland by an isthmus
- 13. a large body of water surrounded by land
- 15. an area that rises above surrounding land and has a rounded top; lower and usually less steep than a mountain
- 16. a deep, narrow valley with steep sides; often has a stream running through it
- 18. a huge, slow-moving mass of snow and ice
- 20. a narrow strip of land that connects two larger areas of land
- 21. an expanse of sand or pebbles along a shore
