why is the sky blue?

Answer 1

Here's a link to that EXACT question! :)

http://www.sciencemadesimple.com/sky_blue.html

Answer 2

The Earth’s atmosphere acts as a light filter, scattering the blue, short-wavelength part of the sun’s light (blue and violet) into the atmosphere (the sky). The human eye is better at detecting blue than violet, so we see the sky as blue.

Answer 3

Water is supposed to be colourless but, in large quantities, it exhibits a blue colour. The reflection of light off the sea gives the sky its blue colour.

Answer 4

Everyone likes to label it as Rayleigh Scattering but still very few explain that term. The Sun emits pure white light. As the sun comes up or sets, the light has more air molecules to travel thru, giving a longer bend to the white light, the reds having a longer frequency, and due to the longer bend of the light from the amount of air, we see reds at sunrise and sunset. AS the Sun climbs higher, it goes thru less air to get to ours eyes. Hence the light is not refracted as much, less bend you might say, blues have a shorter wavelength, so we see blue. Notice on clear cloudless days, the sky is real blue in the middle around noon and appears whitish at the horizon. We are looking at light traveling away from us at the horizon so we see the white light as from the sun. On cloudy or foggy days, less blue because the white light is being filtered by the greyness of the clouds or fog.

Answer 5

coz the creator ran out of yellowThe sky is blue partly because air scatters short-wavelength light in preference to longer wavelengths. Combined, these effects scatter (bend away in all directions) some short, blue light waves while allowing almost all longer, red light waves to pass straight through. When we look toward a part of the sky not near the sun, the blue color we see is blue light waves scattered down toward us from the white sunlight passing through the air overhead. Near sunrise and sunset, most of the light we see comes in nearly tangent to the Earth's surface, so that the light's path through the atmosphere is so long that much of the blue and even yellow light is scattered out, leaving the sun rays and the clouds it illuminates red.

Answer 6

the ocean water is blue so therefore it reflects up to the sky, making the sky look blue.
and in the night there is no light to let the water be reflected so therefore the sky is darker at night.

Answer 7

Its a reflection of the sea. We tend to think of earth being land when actually most of the earths surface is ocean.

Answer 8

Atmosphere

Answer 9

It absorbs the colour spectrum.

Answer 10

Reflection.