The Teacher's Packs are designed so that students have their own reader and materials.Classroom materials consist of robust, non-consumable (when feasible) components designed for years of classroom use.Extensions to the primary projects are practical as there are sufficient supplies for all.The box is teacher designed for easy storage with compartments for convenient access to materials.Internet animations, videos, interactives and quizzes complement the classroom experiments.Contents periodically updated by scientists and educators.Supplemental internet materials allow students to progress at their own pace and to their own level of interest and detail.