why is the sky blue?

Answer 1

The blue color of the sky is due to Rayleigh scattering. As light moves through the atmosphere, most of the longer wavelengths pass straight through. Little of the red, orange and yellow light is affected by the air.

However, much of the shorter wavelength light is absorbed by the gas molecules. The absorbed blue light is then radiated in different directions. It gets scattered all around the sky. Whichever direction you look, some of this scattered blue light reaches you. Since you see the blue light from everywhere overhead, the sky looks blue

Answer 2

Light form the sun is made up of several different colors, each of which has its own wavelength. The wavelength of the blue part of the sun's light is shorter than the size of an oxygen atom. When the blue light waves hit the oxygen atoms in the Earth's atmosphere, they are scattered, making the sky appar blue. The light waves of other colors (with greater wavelengths than blue) are also affected, but the blue waves are scattered more than most.

PS. This is a same question that i ansewed 4 months ago.

Answer 3

The sky is blue because of the water reflecting back at it.

Answer 4

It is the gases that are burning in the Atmosphere and the way that the sun light hits the burning gas it makes that color.

Answer 5

Brit,

Here's a pretty good answer that's been posted earlier. Pretty easy to understand.

http://answers.yahoo.com/question/index;_ylt=Aj4voQgiw9kVkD80W5oL7QcjzKIX?qid=20070123173522AAXqFoW

Answer 6

It's usually white or black here.

Answer 7

because it is