first water on the earth in lakes,seas,oceans is evaporated by the heat of the sun  then water collects as water vapour in the sky this makes clouds next the water in the clouds get cold then  the water falls as rain,snow or hail then it gets collected into the lakes,seas,etc.and from there it evaporates again and continues the cycle
Water cycle is a process it will evaporate the water on land due to heat of sun in mountains,hills,small lake e.t.c.the water vapor in   atmosphere will form the clouds rain will form rain water will be storage on land,hills lakes,underground water e.t.c. in water cycle four important major steps are there.there are  Evaporation,Condensation,Precipitation,Runoff
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