Ever wonder why the sky is blue, vs. say red, orange or purple? An effect called Rayleigh Scattering is part of the reason we ...

It might seem like a simple question. But the science behind a blue sky isn't that easy. For starters, it involves something ...

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 ...

The colour is thought to depend on differences in the protein. Colours in eggshells are created by chemical compounds called tetrapyrroles. There are only two of these chemicals found in bird eggs, ...

T he sky isn't just blue by chance. I t takes all the colors of the rainbow for us to see it that way. I t happens because of something called the Rayleigh effect, or Rayleigh scattering ...