Is it yellow because from Earth it usually looks yellow to us? Or is it white because the sun gives off all wavelengths of light (white light)? Or is it some other color?
In: Planetary Science
How i would explain it to a kid:
Shine a red/green/yellow light on some what paper. What do you see? Paper looks red/green/yellow. It shows what colour is shining on it.
Take the same piece of paper outside in the middle of the day. What colour does it look now? White. The sun is shining white light.
I would then show them the same light with a prism. You can then see all the colours are contained in that white light.
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