The Young Scientists Club - Subscription science curriculum developed by Harvard graduates for children ages 4-8. Children receive personalized science kits including lessons and materials. Science for Today and Tomorrow, Inc. - K - 6 hands-on science teaching system. Exploration Education Science Curriculum - Exploration Education offers physical science curriculum with hands-on projects and experiments for K12. Noeo Homeschool Science Curriculum - Science curriculum for elementary home school students. Science in a Nutshell - Science unit study kits for grades 2 through 6. Available topics include Earth Works, Electricity and Magnetism, The Human Body, Simple Machines, Space Science, Water World, and Living Things. Home Science Tools - Science supplies and educational lab tools like microscopes, test tubes, kits for grades K-12.