When it comes to their own bodies, every kid wants to know why. Why do they burp? Why are their friends taller? Why do they look different from a brother or sister? Time for Kids' popular X-Why-Z series for 5-7-year-olds continues with X-Why-Z Your Body. This book will be the ultimate answer book for how we're made, how we communicate, why we act the way we do, and why everyone is different... yet everyone is so much the same. Adults may call it biology, psychology, sociology, and even anthropology in one great book... but kids will just call it fun.