Usborne First Book of Knowledge Author:Kate Little How do planes fly? Why were castles built? What makes it rain? Simple enough questions; until you try and answer them. From technology to the natural world, history to outer space, this amazing book uses colorful illustrations and down-to-earth text to fill the gaps in your knowledge. — This book combines the f... more »ollowing titles into one volume: Things On Wheels, Things That Float, Things That Fly, Our Earth, Things Outdoors, Rockets and Spaceflight, Sun, Moon and Planets, Where Food Comes From, How Things Are Made, and How Things Are Built.« less