Do all the colors in a crayon box create black when mixed together?
I’m not sure how well the pigments in crayons work, but, if they do indeed mix properly, they would create black. My best guess to experiment with this would not necessarily to use all of them one one page, but rather, break of a small piece of each crayon and melt the combined crayons, stirring the mixture until it is homogenous. But like I said, I don’t know how well the crayon pigments interact. With a different medium (say, acrylic paint) you certainly will get black by mixing all the colors together. Unless, of course, you have a significant difference in percentage (i.e. a 99% red mixed with the remaining 1% composed of all the rest will probably get you a reddish-brown).
