This is the super-absorbent polymer found in disposable baby diapers. Also used in many 'disappearing water' magic tricks this fine white granular instantly turns liquid water into a slush-like solid substance. Technically speaking the polymer absorbs from 500 to 1000 times its own weight in water. Simply add table salt to reverse the reaction. Safe and amazing -- your students will love it! Multi-Purpose: great for use by magicians and education science projects. Used to make ice packs absorb liquid spills magic tricks and many other uses. Manufacturered by Science Gone Fun. Great way for kids excited about science the best and probably one of the magic trick perform well is the disappearance of water. SAFE NON-TOXIC100% BIO-DEGRADABLE. 1 Pound Science Gone Fun Sodium Polyacrylate (Diaper Polymer) magic fun for partyscience school project.