why is the sky blue?

Answer 1

clear cloudless day-time sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight.



The white light from the sun is a mixture of all colours of the rainbow. This was demonstrated by Isaac Newton, who used a prism to separate the different colours and so form a spectrum. The colours of light are distinguished by their different wavelengths. The visible part of the spectrum ranges from red light with a wavelength of about 720 nm, to violet with a wavelength of about 380 nm, with orange, yellow, green, blue and indigo between. The three different types of colour receptors in the retina of the human eye respond most strongly to red, green and blue wavelengths, giving us our colour vision

Answer 2

WHY IS THE SKY BLUE?
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.

Go here for further learning:
http://www.sciencemadesimple.com/sky_blue.html

Answer 3

The sky as we know is made of atmosphere, which is a combination of gases and water. When the suns light rays enter the atmosphere, the white rays are refracted such as ina prism and the blue light is the light ray which reaches the eyes during the majority of the day, other times will get your sunrise and sunset colors. The ocean and the sky reflect each other, helping to get that bright blue color. This is of course a simple answer of a complex scientific issue.

Answer 4

The sun's rays hit the Earth's atmosphere, where the light is scattered by nitrogen and oxygen molecules in the air. The blue wavelength of this light is affected more than the red and green wavelengths, causing the surrounding air to appear blue. At sunset, the sun's light passes farther through the atmosphere, deflecting and decreasing the blue in the air. Scattering by dust particles and pollution in the air causes the sunset to appear red.

Answer 5

I don't know why the sky is blue. Do you know why snow is white or grass is green I guess its just one of those things

Answer 6

to erika...when you hold water in your hands at the beach, the water is not blue honey, its clear. the ocean reflects the sky, not vice versa

Answer 7

Because of the refraction of the sun through the atmosphere.

Answer 8

Because of the refracted light of the ocean, I wish the ocean was pink.

Answer 9

because of the way the light refracts off of the water particles in the air

Answer 10

cz space is black....suns rays are yellow so i guess when all those colors reast and get scaterred etc etc..we get the pale blue color