The Sun produces white light, which is made up of light of all colors: red, orange, yellow, green, blue, indigo and violet (ROYGBIV). This was demonstrated by Isaac Newton, who used a prism to separate the different colors of sunlight and so form a spectrum. We know that atoms and molecules re–emit light waves as we shine on them. Likewise even the tiny particles would do the same. The tinier the particle, the higher the frequency of light it will scatter. The nitrogen and oxygen molecules that make up most of the atmosphere scatter high frequencies when energized by sunlight. The re–emitted light is sent in all directions and is scattered.
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http://www.wonderwhizkids.com/index.php/blue-sky
read more.....
http://www.wonderwhizkids.com/index.php/blue-sky
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