Lung volume

Summary: When you breathe out into the plastic tube, air from your lungs takes the place of the water in the bottle. If you breathe out as much as you can, the volume of water pushed out of the bottle is equal to how much air your lungs can hold. Tags: science student-book-7 biology Created: 2026-05-21 Last Updated: 2026-05-21

Lung volume

When you breathe out into the plastic tube, air from your lungs takes the place of the water in the bottle. If you breathe out as much as you can, the volume of water pushed out of the bottle is equal to how much air your lungs can hold.

Source

This concept is from the [Science Student Book 7](Science Student Book 7/Biology/Body Systems/2.5 Breathing - lungs.md), Biology section.