Mind-stretching activities correlate with the science. The book contains 21 topics, each with background information and writing activities. Among the topcis are Ecosystems, Jonas Salk, Thermal Dynamics, Glaciers, Vitamins, Teeth, Newton’s Laws of Motion, Jane Goodall, Gravity, Periodic Table, Solar System, Plate Tectonics, Matter, Atomic Structure, Hubble Space Telescope, DNA, Human Body Systems, Cell Structure, Scientific Method, and Air Pressure. Grades 5 to 8.