Whether you know it or not, there are magnets hidden everywhere: in compasses, in hairdryers, in telephones, and in computers. This book takes the reader through the different uses and aspects of magnetism: how magnets make engines work, how they can help you to find your way, and even how magnets can be switched on and off! More than 200 vibrant photographs, drawings and diagrams make learning fun, while 15 exciting and easy-to-do projects and experiments will allow you to see the scientific principles in action. The step-by-step projects use readily available objects and equipment: learn how to make your own magnet out of a paperclip or a nail, or how to turn a bowl of water and needle into a compass. Find Out About … is a series for young readers who want to explore the wonderful world of science. With this lively and practical book, young scientists will enjoy finding out about all the fantastic facts for themselves. Ideal for home or school use for 8 to 12 year-olds this book will provide hours of entertainment for your child.