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Klutz / Scholastic Canada Ltd.
ISBN: 9781338159653
Ages 8 & Up

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Gumball Machine: Build a Machine that Really Works!

Perfect for any budding engineer with a sweet tooth!

Make your own spiral gumball machine with step-by-step instructions. Then, keep the ball rolling with other gumball-related science experiments using simple machines. It's a ball of fun!

Gumballs not included.

Comes with: Chipboard parts, Dispenser knob, Transparent acetate, Plastic fasteners


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