Random Postrandom
Copernicus Glowing Putty Gels and Slime Kit
15 experiments that explore states of matter, the chemistry behind gels, polymers, and phosphorescence. Make glow-in-the dark gel, substances that stretch, break and bounce, eco-foam fizzle, and more.
Buy it at amazon.com
$16.99

Score 306
152 people want this
comments powered by Disqus