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Torsion Catapult

SKU: W37521
A Pitsco Exclusive


At last, a catapult kit that uses the same power source as the ancient and medieval catapults – torsion! By twisting the strings holding the launch arm, students can launch small projectiles with this fun siege machine. Plus, it’s great for helping students understand how to apply torque, potential and kinetic energy, projectile motion, and more.

Requires a small screwdriver, white glue, and scissors, sold separately.

Order 30 kits to build a class pack!


Type: Project Kits Grades: 6-12


What You'll Get

  • 2 basswood sheets with laser-cut parts
  • 3 screws
  • Paper clip
  • Yellow twine
  • Torsion Catapult Kit User Guide

Learning Values

  • Force and motion
  • Potential/kinetic energy
  • Projectile motion
  • Torsion
  • Data collection
  • Historical perspectives
  • Systems
  • Modeling
  • Prediction
  • Technological design
  • Graphing
  • Measurements
  • Ratios


  • Assembly Method: Gluing and fastening with screws
  • Tools and Materials Required: Small screwdriver, white glue, and scissors
  • Material: Laser-cut basswood
  • Dimensions: 2-1/4" x 4-1/2" x 2"

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