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Winner of The Royal Society Young People's Book Prize 2016 Discover the science behind how simple machines work in this interactive kids book packed full of pop-ups, pull-outs, and other paper-engineering. Ideal for kids aged 8-13 who are interested in science or engineering, How Machines Works breaks down the basics behind building machines in a fun story illustrated by award-winning artist David Macaulay. Follow the mad antics of two animals, Sloth and his sidekick Sengi, as they try to break out of their zoo with the help of the six simple machines: levers, pulleys, screws, inclined planes, wedges, and wheels. The science of how everything from wheelbarrows to zips, and drills to diggers, is explained in context of these simple machines. See as our heroes Sloth and Sengi attempt a dazzling and daring escape by making a complex machine from the sum of the science knowledge they have picked up along the way. The book uses paper-engineering elements such as press-out models, pop-ups, pull-outs, and flaps to allow the reader to lift levers and grind gears. A wonderful interactive cover features cogs and cranks to illustrate a key part of the story. Packed with engaging, hands-on science, David Macaulay's How Machines Work will gear kids up for scientific and engineering greatness!