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Kids love to ask why things are the way they are. But a lot of adults don't have an answer to one of their most common questions: why is the sky blue?It turns out, there's some pretty complicated science that goes into making our sky the color it is! Everything from wave lengths and dipoles to the Rayleigh and Mie light-scattering principles come into play. Is the Sky Always Blue? simplifies that complex science for young minds. Using clear, easy to understand language and bright, engaging ...