Young inventors at work!
learning science by doing science
Bookitis Pick
YI
Image source: Open LibraryEdwin J. C. SobeyFirst published 19991 editions
Challenges kids to use problem solving and critical thinking to design, build, and test model structures, games, and vehicles.
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First publish date 19991 credited authorSearch language english
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- Open Author
Edwin J. C. Sobey
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