I think you have to be a subscriber. I've been trying to contact them to point out that the clue for 9D (28,857) is misleading (in fact it is wrong in one item), but all the website is about is how to subscribe.
mamya - the link is wrong. I've never heard that in my life and I did A-level art and art history and went to Manchester Art College. Green is made by a mix of blue and yellow, so is secondary. I suspect that manufacturers of these tubes of paints for children are supplying it (pre-mixed) because tinies aren't very good at mixing! But they'll never learn of course if they don't do it and it spreads misinformation. :(
Well, I'll just have to plough a lone furrow then! A primary colour is one that cannot be mixed from others - green can be. Not to worry, life's too short. :)
//The three additive primary colours are red, green, and blue; this means that, by additively mixing the colours red, green, and blue in varying amounts, almost all other colours can be produced.//
Ditto. I think conundrum is solved. My dictionary explains that in Art, the primary colours are red, blue and yellow - but in Science green is included. Well, that's science for you.:)