Measure Lung Capacity Human Body Science Experiment
In this fun and easy human body science experiment for kids, we’re going learn how to measure lung capacity.
- Empty milk jug with cap
- Large bowl
- Permanent marker
- Bendable straw
- Measuring cup
- Fill the milk jug all the way up with water and put on the cap.
- Fill the large bowl about halfway with water.
- Turn the milk jug upside down into the bowl of water.
- With the mouth of the bottle under the water, carefully remove the cap.
- Work one end of the straw up into the mouth of the bottle and hold the other end of the straw securely.
- Take a deep breath and slowly blow into the straw.
- Your breath will enter the milk jug and push the water out of the jug.
- Once you have emptied your lungs, mark the level of water in the jug with the permanent marker.
- Lift the jug from the bowl and allow the remaining water to empty out.
- Now fill the jug with water up to the mark you just made.
- You can now pour this water into the measuring cup to determine your lung capacity.
How it Works:
When you blow through the straw you displace the water in the milk jug. The air in the milk jug will allow you to visualize your lung capacity. By marking the level, you are able to refill the milk jug with water. You can then measure this amount of water to determine your lung capacity.
Make This A Science Project:
Do a few jumping jacks and try this experiment. Do several minute of strenuous exercise and then measure your lung capacity.