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Why does it rain?

Raindrops falling on water

There are three different ways of turning moist air into cloud, so that it rains or snows.

Rain - and other forms of precipitation - occur when warm moist air cools and condensation occurs. 

Since warm air can hold more water than cool air, when the warmer air is cooled the moisture condenses to liquid - and it rains.

The video and text below explain how rain forms and the different types of rain that we get in the UK.

Transcript: Transcript - Why does it rain?

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