• Question: Can air change colour?

    Asked by Priyanshi to Alex, Amanda, Marco, Olivia, Sha on 15 Mar 2017.
    • Photo: Alex Evans

      Alex Evans answered on 15 Mar 2017:

      Yes! The air of planet Earth is mostly made up of colourless gases, but if we added lots of another coloured gas, such as fluorine, then the air would turn yellow. But you probably shouldn’t do that, because fluorine gas can be very harmful!

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