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Home > Medieval Machines STEM Unit

Medieval Machines STEM Unit

SKU: W39845
$1,195.00 (USD)
Availability: In Stock


Medieval war machines that once inspired fear now inspire awe and interest in students. In this three-week unit, students learn about the history of medieval siege machines, then build and experiment with two such mechanisms. Students build and use a catapult to learn about relating speed with projectile mass, testing elasticity, and designing to make the catapult a mobile mechanism and to launch a projectile the greatest distance. Then, the class moves on to the catapult’s cousin, the trebuchet. With this siege machine using counterweights, students explore how projectile mass affects a launch and how to calculate potential energy. Then, they are challenged to use their knowledge to adjust projectile and counterweight masses in order to hit a target.

Interested in purchasing storage for your STEM Unit? We recommend the addition of one Clear Storage Bin with Lid, one Large Blue Bin, and one Jumbo Blue Bin to help make storing your STEM Unit supplies a breeze!


Type: Multi-Student STEM Units and Courses Grades: 6-8


Latex Warning: This product contains latex and when in contact with skin it might result in an allergic reaction.

SDS Sheets

What You'll Get

  • 12 glue applicator tips
  • 2 rolls bond paper
  • 120 washers
  • 12 aluminum spring scale (500 gram)
  • 6 buckets
  • 12 HD Bond II glue
  • 1 package modeling clay
  • 12 pliers
  • 1 package rubber bands


Learning Values

  • Energy conversion
  • Force and motion
  • Potential/kinetic energy
  • Elasticity
  • Historical perspectives
  • Modeling
  • Technological Design
  • Accuracy
  • Design & creativity
  • Design process
  • Developing models
  • Scale and structure
  • Measurements
  • Logic
  • Calculating potential energy
  • Calculating speed


  • Students Served: 24
  • Length of Unit: 3 weeks
  • Note: This product contains latex.

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