Secrets of the Universe is the perfect supplement to the middle school science curriculum. The six-volume series is comprehensive in scope, yet packed with detailed information on a variety of topics, making it ideal for students who want to delve deeper into key areas touched on in their science textbooks. Each volume contains numerous state-of-the-art photographs and informative diagrams and other original artwork that support the text. A glossary of scientific terms further enhances student understanding. This rich and up-to-date guide to the universe is an indispensable resource that will help prepare students for NCLB science testing in 27.