What will we look at in this unit? The Hydrological Cycle The River Course The Characteristics at each stage Hydrographs
The Hydrological Cycle Describes the continuous movement of water on, above, and below the surface of the Earth. Since the water cycle is truly a "cycle," there is no beginning or end. Water can change states among liquid, vapour, and ice at various places in the water cycle
There are many processes that occur within the hydrological cycle, these are; 1.Evaporation 2.Transpiration 3.Evapotranspiration 4.Condensation 5.Advection 6.Precipitation 7.Infiltration 8.Percolation 9.Throughflow 10.Runoff The force powering the cycle is SOLAR POWER, the hydrological cycle cannot occur without this.
1) Outline the difference between: a) Evaporation and transpiration2 b) Condensation and precipitation2 c) Runoff and Percolation2 2) What is the name given to the water stored under the surface? 1 3) What 3 processes contribute to this storage? 3 4) With the aid of a diagram, describe the global hydrological cycle. 6 5) Explain how a balance is maintained within the hydrological cycle.8