Across
- 2. Body of salt water surrounded almost entirely by land
- 6. Flat topped, elevated landforms
- 8. Long, steep-sided, glacial valley now filled by seawater
- 12. Vast treeless plains with permafrost and small, low plants
- 14. Deeper part of a river or harbor
- 15. Narrow piece of land that connects two large landmasses and separates two bodies of water
- 17. Steep descent of water from a height
- 20. Natural hot spring that emits a column of water and steam into the air
- 21. Mountains formed when lava rises through Earth's crust
- 22. Sandy, pebbly or rock shore of a body of water
- 23. High, steep or overhanging rock face
Down
- 1. A stream of water at a considerable volume
- 2. A narrow waterway or channel connecting two larger bodies of water
- 3. Piece of land that is surrounded by water on three sides
- 4. Long, wide body of water connecting larger bodies of water, larger than a channel
- 5. An inland grassland area
- 7. A group of closely scattered islands
- 9. Densely overgrown land with tropical vegetation
- 10. Lowland region saturated by water
- 11. Lowland between mountain ranges or hills often having a river or stream running along the bottom
- 13. Triangular section of land built up at a river's mouth
- 16. Point of land projecting into a body of water
- 18. Area of low lying wet land
- 19. Flat or gently rolling lands
- 22. Hill that rises abruptly from surrounding area with sloping sides and a flat top
- 23. Artificial waterway used for irrigation or travel