Each book in the Science Discovery series illustrates how science touches and shapes our daily lives. Spectacular color images highlight fascinating facts that will engage and excite young minds. In addition, each book offers exciting challenges and handson activities. This captivating series leads to an understanding and appreciation of the important role that science plays in the world around us. Science Discovery is a series of AV2 media enhanced books. A unique book code printed on page 2 unlocks multimedia content. These books come alive with video, audio, weblinks, slide shows, activities, handson experiments, and much more.