Demonstrate the difference between mixtures and compounds with this unique kit. Learners are provided with three unknown compounds, then they develop systematic and scientific solutions to separate the unknowns using five standard methods of seperation: flotation, magnetic separation, solution and recrystalization, melting and desolidification and sifting. Kit Contains: enough material for 30 students to work individually, comprehensive Teacher's Guide and reproducible student worksheets. Includes MSDS. Grades 7-12.