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Archdiocese of Kansas City in Kansas

Goldberg Machine Project

A “Rube Goldberg Machine” is a machine made to accomplish a very simple task in as many steps as possible. For example, you might have played the game called "MouseTrap", where you trip the first mechanism and that leads to a series of events until the cage falls on the mouse. You may also have seen the "Wallace and Grommit" movies, which show a machine with complicated steps getting Wallace dressed in the morning.

TASK:  Build a Goldberg machine that will pop a balloon.

two gearsThis needs to be primarily STUDENT work.   Adults may help a little bit, especially with wood-cutting, etc., but please do NOT do this for your child. 

Use the list below to earn points:

  • 10 pts.  End result: the machine pops a balloon
  • 10 pts.  The machine works on the first try, and only needs a person to start the first action
  • up to 60 pts.  The machine uses simple machines (10 points per type of simple machine used) and the student can point them out and tell their type
  • 10 pts.  The machine will fit on a student desktop (44 cm. x 86 cm.)
  • 10 pts.  The student has a diagram showing their plan for the Goldberg machine



Can you identify what this "Goldberg Machine" is supposed to do?