Summary
Mark builds a giant t-shirt cannon powered by compressed air — so powerful it launches shirts through a roof. He explores how stored air pressure becomes a big push.
Viewer safety
Ages 7+
Made for a general YouTube audience — an occasional mild or bleeped word can slip in, so preview if your classroom bar is strict.
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Teaching resources
Discussion questions
Talk about it
Squeezing air into a small space stores energy. Release it all at once and the rushing air shoves the shirt out with great force.
- Where does the cannon's push come from?
- How does squeezing air into a tank store energy?
- Why does releasing the air all at once make it so powerful?
Quick work-a-long
Vocabulary: compressed air, pressure, force, energy.
Try it: Blow up a balloon and let it go. Explain how the stored air pushed it, using the words pressure and force.

