Water on the land

4. Used to show how the water flow in a drainage basin responds to a period of rain
6. The section of the river between the mountains and the lowland
7. The amount of water that is flowing through a river at one point - measured in cumecs
10. Rocks get smaller by chemical action. Rocks such as chalk and limestone.
12. Rocks get smaller when knocked together.
14. The process where the river no longer has the energy to carry its load
15. They are usually found in the upper course of the river where the water has considerable erosive power
17. Time difference between the peak discharge and the peak rainfall
18. A narrow, steep-sided valley.
19. Falling flood water in the river
22. Large boulders roll along the river bed.
27. Form where the river meets a band of softer rock after flowing over an area of more resistant material. They progressively cut back, leaving a gorge
28. The mountain stage of a river with steep gradients and lots of erosion
29. Normal discharge of the river
30. Minerals, such as limestone and chalk, are dissolved in the water and carried along in the flow, it often cannot be seen.

1. The materials carried by a river by being bounced along its bed.
2. Created on the inside of a meander from slow-flowing water
3. The wearing away of the bed and banks of the river channel by abrasion, hydraulic action, solution and attrition
5. The time period when the most rain fell
8. The rising of flood water in the river
9. The movement of rock or other materials in a river.
11. The maximum discharge in the river
13. Created on the outside of meander by erosion from fast-flowing water
16. Here, the river has high volume and large discharge
20. Smaller pebbles are bounced along the river bed, picked up and then dropped as the flow of the river changes.
21. The finer sand and silt-sized particles are carried along in the flow, giving the river a brown appearance.
23. The pebbles being transported wear away the bed and banks of the river channel
24. A deposit of clay, silt and sand left by flowing floodwater in river valley
25. Rocks and stones erode the bed and sides of river bank.
26. How fast something is going