Explore the squishy, stretchy, slippery side of science with National Geographic! The Mega Slime & Putty Lab contains eight amazing varieties of slime and putty plus cool accessories. What makes putty so stretchable? Why does slime drip and ooze? Check out the Learning Guide for interesting Slime and Putty facts plus a few simple experiments for kids to try at home. Kit includes: Magnetic Putty, Fluffy Slime, Glow-in-the-Dark Putty, Liquid Slime, Color Changing Putty, Snotty Slime, DIY Slime Lab with stir stick, Bouncing Putty, Eight Storage Tins and a 16-page Learning Guide. Quality-tested non-toxic formulas are 100% safe for kids and adults.