Build Your Own Roller Coaster Ball Circuit

Build Your Own Roller Coaster Ball Circuit

$15.00Price
  • learn about momentum and speed
  • create 2 actions with 1 motor
  • circuit is powered by a single gear box
  • rail arrangement and mechanical design allows the roller ball to circulate around the track

 

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Bringing birthday joy to disadvantaged children

©2018 by Birthdays From The Heart Australia

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