Ever wonder how polyurethane insulation is created or why styrofoam is such a good insulator? This kit will reveal those secrets. You will learn what causes polymers to cross-link and form long, gooey molecules and how pressure can be used to tangle molecules and change them from liquid to solid and back to liquid in less than a second. 10 hands-on chemistry labs to engage your mind. This kit includes everything, chemicals, lab ware, and supplies, that you will need to do every activity. A great introduction to chemical reactions, polymers and the world of chemistry. Classroom Kit includes materials for 10 lab groups to perform each activity, along with a Teacher's Guide.