World's Largest T-Shirt Cannon (breaks the roof)

From Mark Rober

World's Largest T-Shirt Cannon (breaks the roof)
15 min4th5th6thScience
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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.

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Ages 7+

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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.

  1. Where does the cannon's push come from?
  2. How does squeezing air into a tank store energy?
  3. 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.