How do we breathe and why do we need oxygen? Your lungs work hard to keep oxygen flowing through your blood. This book explains how the respiratory system functions to take in the air we need to live.
How does blood move around inside the human body? Students will learn all about the heart, blood cells, blood vessels, and other important parts of the circulatory system.
Muscles help us lift, push, pull, and move. Eager readers will explore the different kinds of muscles, how their muscles work, and how to take care of them.
Do you know how many bones are in your body? Get under your skin in this book. Young readers will discover how bones fit together, how they move, and how they protect other parts of the body.
As soon as food touches your tongue, it begins a long process of moving through different parts of your body. This book explains how the human body breaks down food to get nutrients and stay healthy.
The nervous system is a complex network of nerves that allows you to experience the world around you. Children will find out how nerves carry messages to the brain so that people can do things like jump and eat.