Year 4 Science – Lung Capacity

This week Year 4 have been learning about the respiratory system. In this experiment, we were measuring our lung capacity by blowing air into a water bottle that had been submerged under water.

Once we had emptied our lungs, we measured the amount of water that had been displaced by the air we blew into the bottle using jugs and subtracted that amount from the capacity of the bottle. This gave us our lung capacity!

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