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Swell Polymers - TREEHOUSE kid and craft
Vendor
Copernicus

Swell Polymers

Regular price
$11.00
Sale price
$11.00

Description

These curious growing spheres are made from a chemical known as 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 and soften and transform into a hydrogel. Swell!

- note: we only have the RAINBOW water marbles! -