Hi Ian,

Sorry, my set of instructions came with the kit. I don’t know where you could find a copy online. If your cross-linked polyacrylate copolymer is the same as ours, then you just add water (or coloured water) and they grow – we thought they were similar to the rain saver crystals (that you use for the garden) and water beads (that florists use in vases). This kit came with a plastic tube that you could put it in to make a “magic wand” – see more details in the post above. Zinc sulfide powder is supposed to be phosphorescent (light absorbing) so you use it to make glow in the dark reactions. We couldn’t get ours to work though…