Teach your 2nd graders the basic principles of vertebrates/invertebrates, habitats, weather, the ocean, light, energy, heat, the human body, and more. Full-color, write-in pages show large photographs and highlighted key terms that showcase concepts and systems; students make their own booklets by answering questions and completing exercises that are integrated into the explanatory text. A review and a journal entry completes each chapter. Four units (Life Science, Physical Science, Earth Science, and the Human Body) with twelve chapters included. 212 perforated pages, softcover; this is a consumable, non-reproducible text. 2nd Edition. Level 2.