UK spelling! But sold as a word document for North American editing! How do we see the different colours? What are primary colours? What colour does a cyan object appear in a magenta light? How do filters work? Why so many questions? Well, its the DOUBLE SIDED colour worksheet of your dreams! That's why! Aimed at Science classes of all abilities, there are plenty of activities and brain teasers to keep students across the spectrum engaged. It comes complete with a teacher answer sheet to allow you more time to get on with that huge pile of admin and marking staring at you instead of important things like lesson planning. Get a class set photocopied and laminated in FULL COLOUR for maximum impact. That's what I did and the resource has lasted me for years. Enjoy!