Parts of a Heart (How to Build a Human Body)

Despite the simple designs shown on most Valentine's Day cards, hearts are quite complex organs. With this stimulating book, readers take a close look at the four-chambered pump that keeps the blood circulating in their bodies. Colorful diagrams illustrate the different parts of the heart and help struggling readers understand the important processes this key body part performs. Manageable text helps readers of many levels grasp important components of the elementary science curriculum.