Take a field trip without leaving the classroom with these complete student activity kits. These popular kits introduce students to the basic techniques of mineral and rock identification using chips of 12 common minerals or rocks mixed in a natural gravel. Students can use their observation skills and composition knowledge to identify the specimens. Includes: 12 different rock or mineral types in a .5 kg bag of natural gravel, sorting trays and forceps, testing tools, student study guides, and identification tables.