Across
- 3. a course that has meanders but no waterfalls or deltas
- 5. where the river meets the sea
- 6. the course with the thinnest river channel
- 9. the course with the widest river channel
- 13. what does the water in a waterfall fall into
- 14. a lake formed by meanders
- 15. boulders colliding with each other in the river
Down
- 1. where water flows over a cliff
- 2. a wiggley river channel formed by erosion
- 4. hills in the upper course in a zig zag shape
- 7. a circular hole in the river bed formed by hydraulic action
- 8. acid in the water dissolves rocks
- 10. made by waterfalls retreating upstream over time
- 11. flat land where the water overflows onto
- 12. built up material on the river banks from flooding
