Wind-ups
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Image source: Open LibraryChris OllerenshawPat Triggs1 editions
Illustrations and activities demonstrate springs and wind-up toys as sources of energy. Includes a plan for building a model with a wind-up mechanism, and notes for teachers and parents. Suggested level: primary.
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2 credited authorsSearch language english
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- Open Author
Chris Ollerenshaw
- Open Author
Pat Triggs
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