It's important for growing kids to fuel their bodies to learn, grow, and play. In this colorful volume, the knowledge readers need is provided in age-appropriate detail, from what carbohydrates do to the role of protein in building muscle. In addition, the comprehensive main content introduces the parts of the digestive system as well as how food is broken down within the body. A perfect supplement to health and science curricula, this book allows readers to understand their bodies better!.