From the Manufacturer Who knew science could be such Monstrous Fun? Turn polymers into disgusting slime and crystals that look like mucus in a bowl. Perfect to disgust and amaze your friends as you learn the science of polymers. Grow a bowlful of slimey polymer "mucus" while you learn the science behind polymers. Take them out of the water, let them dry out and do it again. Learn how to make water seem to "disappear" using the growing powder. Find out what the growing powder has in common with baby diapers. Learn the science of polymers.