Why does a balloon get squished when you dive deep in a pool?
At a pool, a sealed air pouch changes as outside water pressure changes. The safe question is what sets that pressure—not an invitation to test deep diving yourself.
Talk about it
- What did each water-tile tally measure, and what did each vertical ruler measure?
- Why did the same starting air pockets finish differently?
- Which parts of a person are most unlike the balloon, and which gas spaces need care?