In this book about rulers you can: Find out about forces, levers, friction and air pressure Discover how quickly you react Make a catapult and much more! The One-Stop Science series is bursting with ideas for real experiments using everyday objects and materials.
This is Book 4 in the One-Stop Science Series. See all One-Stop Science books here.
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Angela Royston has written many books for young people, including books about people at work, animals, health and the environment.
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