MiniLab Test Tube Polymer Snow by Heebie Jeebies Expands 100x Mini Science Kit
Made your own polymer snow in a test tube.
Polymer snow is made of tiny white polymers. When water is added to it, they will absorb water molecules by osmosis and increase to 100x their original size...
As the water evaporates the polymers shrink to their original size, ready to use again.
- The white polymers are contained in reusable test tube
- For ages 7+
- Not recommended for children under 3