Wonders of the Human Body

Every second of the day and night - without you even realizing it - your body is working so that you can play, sleep, eat and live. In this book, you will find the answers to certain questions such as: Why do you sneeze? What is your navel for? Why are your bones so hard? Why do you have the hiccups? You will learn about your heart, blood, digestive system and more. Because your body is an incredible machine!