Across
- 3. A mountain with a vent through which lava erupts
- 4. The process of wearing away the Earth's surface
- 9. A group of islands closely scattered in a large body of water
- 12. A large mass of ice that moves slowly down a slope
- 13. A high landform that rises steeply above its surroundings
- 14. A body of water surrounded by land
- 15. A triangular landform formed at the mouth of a river
- 17. A large area covered with trees and vegetation
Down
- 1. A large natural flowing watercourse
- 2. A piece of land surrounded by water on three sides
- 5. A flat, elevated landform with steep sides
- 6. A narrow waterway connecting two larger bodies of water
- 7. A deep, narrow valley with steep sides
- 8. A large landmass that is part of the Earth's surface
- 10. A low area of land between hills or mountains
- 11. A piece of land completely surrounded by water
- 16. A barren area with little or no vegetation
- 18. A fertile spot in a desert where water is found