Summary
A bite-size Design Squad explainer: discover the science trick that keeps a skewer from popping a balloon. In a couple of minutes it makes clear why a skewer can slide through a balloon without popping it.
Viewer safety
All ages
Our rating is a quick teacher-to-teacher guide — preview before showing.
Teaching resources
Discussion questions
Quick questions to check understanding:
- In your own words, explain why a skewer can slide through a balloon without popping it.
- Where have you seen this idea show up in real life?
- How could an engineer use this idea when they design something?
Quick work-a-long
Words to know: unpoppable balloon, plus one new word you heard.
Try it:
- Explain the main idea to a partner in one sentence.
- Find one example of it around you and draw or describe it.


