SmokingBad For your Heath

I studied, whether people that do not smoke have a greater lung capacity than people that do smoke. I asked 20 of my friends. Procedure What I hypothesized is that people who do not smoke have a greater lung capacity than people who do smoke. The way that I tested my hypotheses, is I called up 20 people, mostly from my camp, and found 10 people that smoked, and 10 people that did not smoke. All of the kids were 14 to 15yrs. old and 5ft to 6ft tall. All of the adults were 5ft to 6ft-2in. tall. 8 kids and 2 adults were on each side. The format I used looks like this Name: Phone # Sex: Age: Height: Do you smoke: Then after, asking them the questions, I asked them to take a deep breath and then let it out as long as they could and I timed them doing it. Conclusion My hypothesis about non-smoker's having a greater lung capacity is correct. It is proven to be correct by my chart. The reason that non-smoker's have a greater lung capacity is that smoking, causes problems in your lungs. It is terrible for your whole body but especially your lungs. That is why my hypothesis was correct.