Why is the sky blue?

Answer 1

Because sunlight is "scattered" when it passes through the air. White light is actually made up of every color mixed together. Blue light has the shortest wavelenght, so it is scattered more (In other words, the color blue comes into your eye from every direction). Since you see blue the most, you think that the sky is blue because this is the color that your eye sees the most of.

Answer 2

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.

The atmosphere is the mixture of gas molecules and other materials surrounding the earth. It is made mostly of the gases nitrogen and oxygen. Argon gas and water (in the form of vapor, droplets and ice crystals) are the next most common things. There are also small amounts of other gases, plus many small solid particles, like dust, soot and ashes, pollen, and salt from the oceans.

Answer 3

I believe that the sky is blue because of gases in the atmosphere. Different colours of light have different wave lengths and different types of gases in the atmosphere block different wave lengths. By coincidence the particles in our atmosphere block everything but blue light.

At dusk and dawn the sunlight comes to us at an angle, meaning that the atmosphere seperates the light at a different rate making the sky more red.

Hope this helps

Answer 4

The molecules in the atmosphere generate several different light waves, the most dominate is the blue light wave. the color of the sky depends on the positioning of the earth and sun and the amount of light rays reaching the earth from the sun and the molecules in the air. thats y the earth's sky can look light blue, dark blue, purple, yellow, pink, orange, etc.

Answer 5

The sky is blue because of the scattering of light by dust particles in the air. Jules, Lecturer. Australia.

Answer 6

This is an old question. The reason is because that is the color of the spectrum that is absorbed the least by our atmosphere (a green shirt is good at absorbing all other colors except green). The atmospheric absorption is caused by the water and dust particles present in the air, as well as the component gasses that make up our atmosphere.

Answer 7

The sky is blue because of the reflection of the sea. And the sea is blue because of the reflection of the sky. So they are both blue because they are reflecting upon each other.Easy hey?

Answer 8

well that's like asking, Why do farts stink?

It's like wiping before ya poop.. It don't make sense.

Sky is blue because N and 02 content in the atmosphere.. Same reason water appears blue from space.

Answer 9

It's the way the light from the sun refracts off our atmosphere. Every single colour you see depends on how light refracts off whatever you're looking at.

This is quite interesting since everyone's eyes respond to light in different ways. The colour you see is the product of light refracting through an atmosphere, hitting a second object and refracting off that, and then going through your eyes which then translates the colour in to electrical pulses so your brain can decipher. If you follow this through, you realise that absolutely no one can agree on what colour, for example, Green is.

What you see as green, I may see as blue and there's absolutely no way of proving it or even checking it. You can't simply say "Green is the colour of grass" because I might see grass differently to you. Hee hee hee. I love physics.

Answer 10

so that it could make a purfect picture background!