Class 1 Catapult

Project Snapshot
A class 1 lever puts effort on one end, the work on the other, and the fulcrum somewhere in between.
This project illustrates this fundamental tool while also delivering some high-flying projectiles!
Click to expand
Tools and Materials
The Engineering Creation Kit has everything you need for this project and many more from STEM Inventions, or get the supplies in bulk:
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Tool to cut or break craft sticks
Tips and Troubleshooting
If the hinge is breaking or falling out of the cubes, then...
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Make sure to press firmly and quickly onto the catapult arm; don't strike it with your fist
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Make the dowel slightly longer so it can't fall out from between the cubes with holes