Swell Polymer Rainbow Spheres- Science of Polymers 15yr Read the world to change

Read the world to change the world

Gold tone wire in the embellishments allow them to be moved into jaunty angles

This sweater fits mice in size mum/dad and grandma/grandpa perfectly

this doll is a beautiful embodiment of our commitment to innovative design and safety

Surprises inside vary and may include: a vintage-inspired toy

Swell Polymer Rainbow Spheres- Science of Polymers 15yr Read the world to changeThese 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 water bead. Swell! All in a packed in a test tube and