Make water disappear like magic with the Steve Spangler Science Water Gel! As seen on the Ellen DeGeneres Show, and also known as slush powder, this Water Gel science experiment kit turns a powder to a gel in just seconds. It's made of sodium polyacrylate, which is a super absorbent polymer with the ability to soak up 500-800 times its weight in water. It's actually the secret ingredient used to absorb “liquids” in baby diapers! Best of all, this science kit for kids is reusable! After you're done with your experiments, just spread the polymer into a thin sheet to let the water evaporate. In about 2 weeks the gel will be back to its original powder form. You can use this Water Gel to bring the excitement of science to life at home or in your classroom. It's an exciting hands-on STEM project that will keep kids engaged. It also makes a fantastic stocking stuffer and holiday gift idea for ages 6 and up. Includes 0.52 oz test tube of Water Gel Polymer and instruction cards with 3 experiments: The Amazing Disappearing Act, Where's the Water? and Salty Breakdown.