Being active is essential to keeping the heart and lungs healthy. Those two organs have a lot to do with the overall health of the body, and they need to be taken care of! Readers discover the intrica
Sight, hearing, taste, touch, smell. These five senses help people understand the world around them and raise some interesting questions. Can people live without their senses? Is there really such a t
Muscles do a lot more than make people strong. They help people move and can even keep them warm. The human body depends on muscle to survive. The exciting question-and-answer format of this book touc
Why don’t women have beards? Why do we get chapped lips? This book about the workings of the human body will answer these questions and more! Readers will explore the splendidly strange ins and outs o
A body is like a building, and its bones are the framework! In this book, readers will explore all they ever wondered and more about human bones. Readers will discover how many bones are in a body, wh
The human body is an amazing machine made up of many fascinating systems. This fun, fact-filled book features a series of questions and answers about how the human body works. Readers will learn what
From learning about what an organ is, to how a body digests food, readers will discover the inner workings of the body in this book about organs and their functions. Readers will explore the brain, he
Germs are always present in our bodies. However, a healthy immune system keeps them at bay and fights off illnesses that do grow in our bodies. Perhaps the most important body system, the immune syste
Body growth begins at the cellular level. From the start of life to the growth spurts of teens, it’s the tiny, basic units of life that make everything people do possible. Much about our cells and DNA
Without bones and muscles, running and jumping wouldn’t be possible—and neither would just sitting or standing! The skeletal and muscular systems give the body shape and power. Readers learn these sim
The brain is the most important organ in the body, but there’s so much scientists still don’t know about it. Its main connection is to the nervous system, which helps it tell the rest of the body what
