This book has a variety of machines including several pneumatic designs. All of the machines are simple enough for kids to build but complex enough to really challenge them. -Karen Measurement Simple machines Scale Air Constructions for Children by Barbara Eichelberger & Connie Larson Published by Dale Seymour Publications ISBN 0-86651-627-1 Summary: A collection of activities which focuses on problem solving, constructing and evaluating working models based on themes from literature. For more literature and science connections browse through other Books you can use. How can you feel the difference between a first class and a third class lever? Explore a place where simple machines can be found. Challenge a friend to a "Pully Pull-Off". Try to find or make a toy that uses a simple machine. Creature comforts Fighting Friction All about air power

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