Introduce the concepts of changes in states of matter (from liquid to solid), demonstrate the process of cross-linking long chains of molecules, and explore the science of polymers. Start out by using polyvinyl alcohol (PVA) and borax to make slime. Then, use polymer to turn ordinary water into a white fluffy substance that looks like real snow. Introduces learners to the physical reactions, polymer science, and the environmental benefits of superabsorbents. Lastly, squeeze a long stream of Worm Goo into the activator solution and you will get an instant gooey worm. It’s a cross-linking reaction between sodium alginate and a solution of calcium chloride that happens the instant these two liquids mix.
To better understand the suggested activities in this kit, view additional image link to left.
Recommended Audience: All ages
In this kit: PVA solution and cross-linking solution, stir sticks, mixing cups, Insta-Worm Solution and cross-linking solution, superabsorbent polymer powder, petri dishes. Note that material is NOT to be discarded down the drain when finished.
For a complete list of the materials provided in this kit, view additional file to left.