Copernicus Swell Polymers

Copernicus Swell Polymers are curious growing spheres made from a super absorbent polymer (or SAP).

SAPs are amazing materials! They are long chains of molecules that join together in a net-like pattern. Water is pulled in through the holes of the net. Then, the molecule chains soak up tremendous amounts of water. When the molecules absorb water, they swell, soften, and transform into a hydrogel.

Color randomly selected.

Recommended for ages 8+. 

Warning: Choking hazard.