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Learn how to build a catapult of your own

Science Project Catapult with Experiment Guide.



Designed especially for school science experiments, this catapult/trebuchet stands 15 inches long, 11 inches wide and 10 inches tall at the axle. The arm is 16 inches long and can hurl a marble up to 30 feet. This machine is designed to be configured and fired in a multitude of ways to test different theories about efficient projectile motion.


Which works better, a sling, or a spoon-type arm? Is a counterweight better than a spring? What about wheels, some people think wheels make a trebuchet better, others disagree. Now you can test all those things, and any combination of them as well, and come to your own conclusions.


Ideal for Science Olympiad, Six Sigma, Design of Experiment (DOE) and other statistical methods courses, this kit even comes with a 23 page booklet including ideas, experiments, tips and tricks you can do with the kit, from basic kid-friendly concepts all the way up to college level material, including how to effectively organize and display (graph) your results.


The experiment guide includes:

  • 13 steps to a successful project
  • The science of projectile motion
  • Definitions of kinetic and potential energy
  • Effects of configuration changes
  • Safety issues
  • Useful equations (basic math)
  • Advanced calculations (trigonometry)
  • Standard deviations
  • Graphing results
  • Five different experiments with questions to answer for each
  • Data Log sheets
    And more!


    The kit includes everything you need to build and operate the kit. The only thing you need to supply is a standard Phillips screwdriver and a few rubber bands. The kit is easily convertible from any configuration to another in a matter of seconds. It's a fantastic learning platform!


    This product is manufactured in Canada.



    The basic counterweight with sling configuration.



    Rubber band (spring) powered with spoon-arm.


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    • Price: $49.00
      Our Price: $39.00

      Minimum age: 8
      Availability: out of stock

      Item code: 11002

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