Ah, I used to love these things growing up. I remember a book I always read at the library but I can't think of the name of hand. It had awesome experiments like making your own dye, growing various types of crystals, recycling rags to make paper, and it got better. Toward the back of the book they got really good with things like making gun powder, making rocket engines, cutting glass bottles and jars using electricity, reusing a tv flyback coil to make big sparks and explode wood. It was an awesome book! Nothing that would be allowed in a library today I'm afraid.