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I Wonder Why – Why Clouds Turn Black When It Rains?

darkness

Why are rain Clouds Black?

● Clouds are formed of tiny water droplets and ice crystals that float in the air.

● Clouds appear white because of the scattering of sunlight. 

● Sunlight consist of seven colours of a rainbow.  When light passes through 

clouds, all the seven colours are scattered by the water droplets and ice particles 

and together they produce a white appearance.

● Rain  Clouds,  however, are  densely  packed  with  water  droplets,  ice  and  snow 

particles. So, light cannot penetrate them. Thus we do not see the rays from the 

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sun and this results in a dark effect.

● If  we  look  from  an  aircraft  flying  at  a  high  altitude,  these  dark  clouds  will  look 

white. This is due to the reflection of light falling on them.

● That means the same clouds appear both dark and white at the same time!