Rain forms when warm air rises and cools, the water vapour in it condensing into small droplets. These droplets collide with each other, forming larger drops that fall as rain. At very low temperatures, the droplets are super cooled, often forming crystals. These grow into rain as they fall into warmer air.Friday 23 September 2011
RAIN
Rain forms when warm air rises and cools, the water vapour in it condensing into small droplets. These droplets collide with each other, forming larger drops that fall as rain. At very low temperatures, the droplets are super cooled, often forming crystals. These grow into rain as they fall into warmer air.
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