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Presents a selection of games to be played or made with balls and tracks. Illustrates some scientific principles such as gravity, momentum, and kinetic energy.
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Book Description William Morrow & Co, 1985. Library Binding. Condition: New. Never used!. Seller Inventory # P110688041590
Book Description William Morrow & Co, 1985. Condition: New. Roy Doty (illustrator). book. Seller Inventory # M0688041590