Why is the sky blue?

Answer 1

cos if it was green it would be grass

Answer 2

We all know that white light of the sun is composed 7 colors: red, orange, yellow, green, blue, indigo and violet..... the first color to reach the sky when the sun is shining bright is the blue one so we see sky as blue.

But..... when there is a presence of concentrated dust particles in the atmosphere, in dawn or when the sun sets, we see the color orange or red or red orange.

Answer 3

FYI: Though scattering of sunlight (mostly by Nitrogen) is the primary reason for the *blue* sky, red skies are mostly a result of scattering (and even absorbing) of light by particles, such as pollutants in smoggy cities. Those particles are much larger than molecules, and the scattering mechanism is different.

Answer 4

Edit: I will remove my answer, as obviously I was wrong on this part. But the rest of what I wrote was true. Thanks for the link. Now I can answer this question when my daughter asks.


Why is a rose red? Because a rose absorbs all colors but red. It bounces red colored light back out and so it appears red to us when we look at it. Why is the grass green? Because grass absorbs all light except green. It reflects green colored light, so when we look at grass we see green light.

Hope this helps.

Answer 5

Because the water particles in the air reflect the sunlight, like a prism, and the color it appears is blue ('cause that's the wave length that reflects off of it.)

Answer 6

i think because the ocean is blue and it reflects off the ocean causing the sky to be blue. ive seen this question once before........ not the first time i saw this

Answer 7

there is some scientific answer that i do know but i just dont remember what it is. oh i remember its because of the wavelengths or something. but i mean why isnt it purple??? or green? and why isnt the grass red??? trust me i ask myself these questions all the time....

Answer 8

Because of the different wavelength that we see.

Answer 9

Look at this it explains the whole thing.