The circulatory system is the heart of the body. With engaging text, fun facts, and infographics, learn how the circulatory system is responsible for pumping blood and nutrients throughout the body.
"...these easily comprehensible but not simplistic presentations not only offer lessons on biology that are well pitched to the intended audience-they also include helpful remarks about, for instance, safety gear and even smoking and alcohol or drug abuse. Useful additions."
School Library Journal
"STARRED REVIEW! Look no further for a primary grade series on the systems of the human body. These books describe the components and functions of the featured systems using engaging, age-appropriate detail and depth. The tone is both conversational and authoritative, and the pacing and text features afford readers ample opportunity to construct meaning. . . .this series will make an excellent add
