True or false? Your skull is one solid bone. All your teeth are shaped the same. Your smallest...

QUICK: Name the most powerful and complex supercomputer ever built. Give up? Here’s a hint: It’s...

Don't move a muscle--read all about them! Did you know that... Without muscles you couldn't blink...

With brief text, photographs, age-appropriate diagrams, and simple experiments, this book brings...

Introduces the digestive system, including the digestive process, the organs involved in digestion...

By the time you finish reading these words, your heart may have beaten up to 50 times. As you walk...

This fun, smart guide to the human body answers kids' questions and engages them with amazing facts...

Describes what makes people cough, sneeze, burp, yawn and have other such reflex responses and...

Have you ever wondered what makes you sneeze when you're in a dusty room? Or shiver when you get out...