To deliver oxygen to the body, air is breathed in through the nose, mouth or both.
Lung capacity is the volume of the most air you can exhale after fully breathing in. Based on that I will experiment with two kind of subjects in order to measure their lung capacity and get conclusions about the results. II. Research Question
How does exercise affect the lung capacity of people? III. Variables Variables | Control of the variables | Independent variable | Level of exercise | I will control my independent variable by working with people who do exercise and people who don’t do exercise at all. | Dependent variable | Volume of air in a balloon as measured by the displaced from a bucket | In order to control my depend variable I use a tray to measure the amount of water displaced from the bucket, and from there measure their lung capacity. | Controlled variables | Temperature | For each controlled variable I | | Pressure | Just don’t consider their effect | | Smoker persons | Because I perform the whole | | The altitude of La Paz city | Experiment under the same conditions. And ask some questions to the volunteers first. | IV. Materials
The materials used for the procedure are: 1. 14 balloons 2. 1 tray 3. 1 bucket 4. Graduated cylinder 5. Water
V. Procedure
1. I chose specific volunteers who could help me with the experiment, some of those athletics and the other persons who don’t do exercise. 2. I ask them to take in the deepest breath they can. 3. Once they had took their
Bibliography: http://www.wsd2012.european-lung-foundation.org/17343-how-do-the-lungs-work-.htm http://wiki.answers.com/Q/How_does_lung_capacity_work