How+much+air+can+they+hold?



Kandra Pattison


 * Problem**

How does height, weight and gender affect lung capacity?

I have a goal to get as much lung capacity as possible so that my singing could improve. Seeing how height and weight effects it could help me out. []
 * Introduction**
 * Background info.**

What lungs do and what they are made of.

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Easy to understand-Where the lungs are found.

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How it works. • I had the participant’s hold their breath as long as possible. • Since the height and weight could effect lung capacity I had them write them down. • I also had them write down what sports they have played during the school year, since their physical activities could effect their breathing. I predict….that larger people will have more lung capacity since they would have more room.
 * Hypothesis**

Stop watch 6 male 7th graders 6 female 7th graders
 * Materials**

Independent variable-height and weight Dependant Variable-Time they held their breath in minutes and seconds Controlled Variable-equal number of girls and boys
 * Variables**

Have the participants hold their breath for as long as possible. Time it. Write down what sports they play. Write down their height and weight.
 * Procedure**

• The result was very surprising to me. There was no significant pattern.
 * Conclusion**

Some people might not have held their breath fairly.
 * Possible causes of error**

Trying to hire a singer? Now you know that it doesn’t matter what gender you choose.
 * Possible applications**

I could have timed people myself instead of having them do it themselves.
 * Further research**

I would like to thank Mrs. Riffel for giving me so many ideas. I would also like to thank my mother who helped me in decorating my board and encouraging me and all the people that I tested for being so patient with me.
 * Acknowledgements**


 * Time spent**

September 2=30 min September 3=40 min March 22=10 min April 13=16 minutes April 1=1 hr. and 15 min. April 24=2 hr April 30=30 min..