why is the sky blue?

Question

Hi people. Why, when you look up at the sky, does it look blue?

Answer 1

Electromagnetic radiation are waves that carry photons and are pretty much currents of electromagnetic fields. Examples include, Infrared which have a large wavelength and Ultraviolet radiation which have a shorter wavelength than visible light. Light consicts of 6 colors, Red Orange Yellow Blue Indego Violet. Those are in order of longest wavelength to shortest. When Visible light enters the atmosphere the Longer wavelength colors such as Red Orange and Yellow pass through rather easily, while the Shorter Wavelength colors Like Blue Indego and Violet have trouble passing through, and get reflected in to earth by various particles such as water vapor. That is why we see blue, we are actually seeing Blue Indego and Violet, hence giving a Light Blue appearance.

I hope this helps you!

Answer 2

Hi,
You have not mentioned your age and the school that you read in?
Well here is the answer that I think should satisfy your needs.

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.

Blue sky from scattered light

As you look closer to the horizon, the sky appears much paler in color. To reach you, the scattered blue light must pass through more air. Some of it gets scattered away again in other directions. Less blue light reaches your eyes. The color of the sky near the horizon appears paler or white.

Sky paler at horizon
Hope I solved your querry.Here is a link to know more.
Bye

Answer 3

Sunlight is made up of all colors, though normally our eyes do not see the individual colors. When sunlight hits the atmosphere of the earth, however, blue breaks off from the other colors and is scattered in the air. Seperated like this it becomes visible, and that is why the sky looks blue.

Answer 4

The sky is blue because of the sunlight being refracted because of particles in the sky (like a prisim). During sunsets and sunrises, the light is refracted into a different color. At night, there is no light to refract, therefore, the sky is black.

Answer 5

Molecules of oxygen scatter the short blue wavelengths of the sun's light downward to our eyes. The longer red wavelegths only get seen near sunrise and sunset because the dust particles in the atmosphere and smog molecules are larger and interaxct with those longer/larger wavelenths and bend the light accordingly. The blue wavelengths being scattered away from our eyes because of the angle of incidence.

Answer 6

Because blue colour in the sunlight is scattered more than any other colour by the molecules and atoms of Nitrogen and Oxygen in the atmosphere.

Answer 7

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

The sky refracts light from the sun. This refraction, or bending and splitting, of the light causes the blue portion of the sun's rays to pass through the atmosphere to our eyes.

Answer 8

Rayleigh scattering

Answer 9

For this exotic question I suggest WIKIPEDIA > Sky

Answer 10

that's a reflection of a vast Ocean of the Earth