Drainage Basin

4. line or zone (1) of fastest flow (1).
5. is any precipitation that has been intercepted by vegetation (1) then passes down the branches and stems of vegetation (1).
6. is the percolation of water (1) into a groundwater store (1).
8. the process by which water soaks into or is absorbed by the soil (1) in a downward movement/from the surface (1).
9. is the transformation of water into gas (water vapour) (1) through the application of heat (1).
11. is the volume of water flowing through a river channel. This is the total volume of water flowing through a channel at any given point.
13. Underground water is held in an aquifer/above impermeable rock (1) the water level is raised to the surface through recharge (1). The spring forms at the point the water emerges from the ground (1).
14. is the lateral movement of water within the bedrock (1) which discharges into a stream from the ground water store.
16. high velocity (1) in combination with friction (obstructions, roughness) on the bed and sides of the channel (1) leads to chaotic flow (eddies) (1).

1. smooth flow/no eddies (1) in the form of sheets (1)
2. the combined process of evaporation (1) and transpiration from the stomata/leaves of vegetation (1)
3. A corkscrew-like flow of water called Helicoidal Flow moves material from the outside of one meander bend and deposits it on the inside of the next bend.
4. the downslope movement of water (1) within the soil towards the river channel (1) parallel to the surface (1).
7. the trapping of water during a precipitation/rainfall event on leaves of vegetation, etc. (1) preventing it initially reaching the ground (1).
10. vertical (downward) movement of water (1) through soils and/or bedrock (1) after infiltration into soils (1).
12. A measure of the degree of meandering within a river, defined as the ratio of stream length to valley length.
15. is the water present in the soil (1) after infiltration (1).