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Wheels and Axles
häftad,
2018,
Engelska,
ISBN 9781543500820
Learn about how a wheel and axle works Beginner readers and budding young scientists will love learning about using simple machines in everyday situations. Along the way, readers …
Inclined Planes
häftad,
2018,
Engelska,
ISBN 9781543500837
Learn about how an inclined plane works Beginner readers and budding young scientists will love learning about using simple machines in everyday situations. Along the way, readers …