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GCSE Geography > Hydrological Cycle

The Hydrological (Water) Cycle is the moving around of water in the atmosphere, sea, and ground in a continuous cycle. The path that the water follows is shown below:
    Clouds -----> Vegetation -----> Ground -----> Soil -----> Rock -----> Sea -----> Clouds
The following processes are involved in the hydrological cycle:

    Precipitation - water in any form that comes from the clouds (e.g. - snow, rain, sleet, hail)

    Interception - this is where plants, trees, or buildings collect the precipitation

    Stem Flow - where the precipitation flows along the stems of a plant to the ground

    Through Fall - where the precipitation is not intercepted but falls straight to the ground

    Infiltration - where the water filters through the ground and the tiny pores in the soil

    Percolation - where the water moves downwards through the soil

    Over Land Flow - this happens when either the soil is impermeable or saturated and the water flows over the top of it

    Ground Water Flow - this is the movement of water sideways through the soil

    Underground Flow - slow movement of water through the ground

    Transpiration - where the water goes up through the plants and is released into the air through the leaves

    Evaporation - where the water is evaporated straight from the ground or from the sea

    Evapo-transpiration - here, the water vapour consists of both evaporated and transpired water

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