Summary
Bill squeezes, crushes, and lifts with air and water to show how pressure pushes in all directions and can do surprising work.
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All ages
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Teaching resources
Discussion questions
Discussion
Bill squeezes, crushes, and lifts with air and water to show how pressure pushes in all directions and can do surprising work..
- How can air push hard enough to crush a can?
- Why do your ears 'pop' going up a mountain or in a plane?
- Where does pressure push - one direction or all around?
Quick work-a-long
Vocabulary: pressure, force, air.
Try it: Press a suction cup to a smooth surface and explain what's holding it on.