The science of slime! 
Our Copernicus Toys fan favorite hands-on explorations of states of matter, the chemistry behind gels, polymers, and phosphorescence. Experiment with making glow-in-the-dark gel, a putty substance that flows and stretches, breaks and bounces, eco-foam fizzle, and much more. 15 experiments in an awesome box.
6x4x4" box.