There are seven colours in the rainbow. They are red, orange, yellow, green, blue, indigo and violet. Grab your coloured pencils, felt tips or paints and colour in the rainbow to help you remember ...
Ever wonder why the sky is blue, vs. say red, orange or purple? An effect called Rayleigh Scattering is part of the reason we see only blue, despite it all starting with a rainbow of colors.
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