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Copy of Science Fair WBgd

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by

Hailey Smith

on 13 December 2014

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Transcript of Copy of Science Fair WBgd

Smokers
vs.
Non-smokers
Hypothesis
Problem
Results
Analysis
Conclusion
Materials
Procedures
Hailey Smith

8th Grade, Arnall Middle School

Dr. Barnes
Pictures
Graph
Graph
Graph
5 smokers
5 non-smokers
stopwatch
1. Gather materials
2. Alert smoker in regards to being able to breathe
3. Use stopwatch and have the smoker/non-smoker hold breath until they become uncomfortable or cannot hold it any longer.
4.4) Repeat steps two and three ten times to form a total of five trials
5.5) Compare results of the smoker and the nonsmokers in order to determine who, on average held their breath the longest.


Hypothesis: Non-smokers will hold their breath 30 seconds longer then a cigarette smoker.
If a smoker and a non-smoker hold their breath, will the non-smoker hold it longer?
Data Table
In conclusion to my experiment, my hypothesis was supported and my prediction was right. Non-smokers, on average, held their breathe about 30 seconds longer than a non-smoker. Non-smokers typically had a time of about a minute or nearly if not quite. A smoker's time typically was somewhere around 30 seconds and was often slightly less. This concludes my experiment, non-smokers do have better lung performance compared to smokers and can on average hold their breathe about 30 seconds longer.
In trial one the non-smoker held their breathe for a total of 51.97 seconds, while the smoker held theirs for a total of 29.45 seconds, leaving the non-smoker to have held their breathe for a total of 22.52 seconds longer. In trial two the results were much further apart with the difference of the two times being 42.55, the non-smoker holding their breath with a time of 62.78 seconds and the smoker holding theirs for a total of 20.23 seconds. The smoker and the non-smoker held their breathe for less time in trial three when the smoker held their breath for 16.99 seconds and the non-smoker held theirs for 53.13 seconds still resulting in the non-smoker holding their breath longer by 36.14 seconds. The difference of the two times in trial four become smaller with the smoker holding their breath for 24.4 seconds and the non-smoker holding theirs for 46. 25 seconds causing its difference to be 21.85 seconds. Trial five had a difference that was quite close to trial for with it being 21.71, however the smoker and the non-smoker each held their breath longer than those in trial four with times of 55.43 for the non-smoker and 33.72 for the smoker. On average the non-smoker held their breath for about 53.91 seconds, and the smoker holding theirs for a much shorter time period of 24.96 seconds proving my hypothesis to be correct with the time difference on average being 28.95 seconds.
The results of each trial show that a non-smoker can hold their breath longer than a smoker by an average of about 30 seconds. The data also shows the stress that smokers put on their lungs which prevents their lungs from working with ease. Though none of the data repeats itself exactly, it is mostly similar, or within a few seconds of each other. The data is all related, and is therefore relevant to the other results.
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