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Examining the relationship between lung capacity and ageFeatured science projectScience project video


The experimental data and analyzed results support the hypothesis that a person’s lung capacity will increase until he is in his 20’s, after which his lung capacity will slowly decline as he grows older.

Our lung capacity is an indicator of our health condition. As lungs supply oxygen to the blood vessels in our bodies and remove any carbon dioxide generated as waste gases from our blood stream, it is very important for us to keep our lungs healthy. Habits such as smoking not only reduce our lung capacity but will also damage our lungs, leading to lung cancer.

Also consider

This science fair project can be repeated to compare the lung capacity of smokers and non-smokers.

Try to repeat the experiment to compare the lung capacity of athletes and non-athletes.


Human lung -

What should I know about lung capacity -

Lung volumes -

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Complexity level:
Project cost ($):
Time required:
Preparation will take approximately one day, and observation and recording of data will require one more day
Material availability:
Easily found
Safety concerns:

Basic safety requirements