Heat from the sun warms up water in oceans and lakes, turning it into water vapour, in a process called evaporation., Plants give out water vapour through their leaves and into the sky, in a process called transpiration., Water vapour rises and cools down to turn back into liquid water droplets, in a process called condensation., Water droplets gather to form clouds and eventually fall to the ground as rain, snow, or hail, in a process called precipitation., Water that does not soak into the ground flows over the surface and into rivers or the sea, in a process called surface runoff., Water that falls to the ground and seeps deep into the soil and rocks, in a process called infiltration.

Topic 3.3 Hydrological Cycle

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