Presents a children's study of how the brain works, how it controls what the body does, how it helps to learn new skills and think, and how the brain helps in movement and muscle control.
Presents a children's study of muscles, what they are and what they do and explores the workings of all the muscles of the body and how they help in movement.
Presents a children's study of the heart, how it works to keep the body alive, how it pumps blood around the body, keeps sickness away, and things people can do to care for the heart.
