Discover what machines are, how they work, and how they have developed through history, in this fascinating fact file and learn-it-yourself project book. You can find out about levers, pulleys, wheels and axles, gears, hydraulics, wind power and much more. It includes 19 practical experiments - make a windmill, a hydraulic lifter and even a vacuum cleaner! Over 260 images include step-by-step photographs and explanatory illustrations. It is an accessible and lively introduction to machines, ideal for home or school use for 8- to 12-year-olds. From sophisticated computers to a simple pair of scissors, we are surrounded by machines. This engaging science book looks at the enormous variety of machines in our world and how they function. Fascinating hands-on projects, such as making your own gears and belt drives, a pulley, a block and tackle, a can crusher, a water wheel, and an Archimedean screw, will help you to fully understand the principles behind them. "Find Out About" is a series for young readers who would like to explore the exciting world of science.
Each book covers a different topic, bringing the subject to life with vibrant photographs, detailed drawings and clear diagrams, making it really fun to learn. There are easy-to-do experiments using everyday objects and equipment so that young scientists can enjoy finding out all the fantastic facts for themselves.
Chris Oxlade is an experienced author of information books for children. He has written more than 200 titles on science, technology, sports and hobbies, from encyclopedia articles to fun activity books.