Holding a Door Open: Wedge vs. Wheels and Axles Book Discussion

Holding a Door Open: Wedge vs. Wheels and Axles (First Step Nonfiction: Simple Machines to the Rescue)

Holding a Door Open: Wedge vs. Wheels and Axles (First Step Nonfiction: Simple Machines to the Rescue)
by

Mari Schuh (Goodreads Author)

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