Britannica First Big Book of Why

In this huge, authoritative and lavishly illustrated question and answer book from Britannica, youll find the answers to all those questions curious kids want to know. Why do elephants have trunks? Why are clouds different shapes? Why does popcorn pop? Why does my tummy rumble? Why do we flush the toilet? This book features chapters on Bugs, Pets, Wild Animals, the Body, Food, Machines and Space and also includes some of the mysteries which experts are still trying to solve!