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I Wonder Why – Why The Rain Comes In Drops And Not A Stream?

Rain Drops

Why does rain come in drops and not in a continuous stream? 

● Warm air turns the water from rivers, lakes, and oceans into water vapour that 

rises into the air. That water vapour forms clouds, which contain small drops of 

water or ice crystals.

● As clouds rise higher and higher, the air gets colder and colder. When the water 

vapour in the cloud becomes too heavy, it falls back to the ground as rain or snow.

● Rain is restricted to drops of water that fall from a cloud. They have a typically 

diameter of at least 0.5 mm.

● The  larger  the  cloud  droplet  the  better  the  chance  of  its  colliding  with  a  giant 

droplet. So each drop falls at a different speed as their sizes are different. There 

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are collisions between raindrops.  Some collisions cause drops to coalesce, 

forming a large drop and some cause drops to break into smaller ones. As the 

As a number of drops grow the intensity of rain increases.