Box B Gels, Chemical ReactionsMaterial World Chemistry 2 separate experiments designed to make students think differently as they draw similarities and differences between the interesting outcomes. 2 Experiments, learning and experimenting with gels, and chemical reactions. Watch gels grow as they absorb water, and make your own "worms" from seaweed! Generous materials for 2 experiments for 30 students, or 2 experiments for 60 students working with a buddy. Workbook and teacher