Sky Blue
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Why is the sky blue can it change color?
Ok please why is the sky blue.
Light travels in waves and each colour has a different wave length. As all the different colours travel through our atmosphere most of them bounce off the particles floating in the air, more of the blue light gets through the atmosphere than any other colour so we see blue skies.
As the sun sets, the light waves have to travel through more atmosphere to reach our eyes and (and because it is closer to the horizon more dust as well) and so more of the reddish wave lengths reach our eyes so the sky changes colour from blue to a reddish colour.
Hope this helps.
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