Subject: Who has a greater lung capacity a 9 year old boy or a 9 year old girl?

I am asking this question for my science fair topic. Any other information 
about lung capacities would be great. I would also like it if you could give 
me any good websites to go to. Also, I asked a question before and it told me 
when i checked its status it said there was no contact info. My last questions 
id was 1173981918.An I would appreciate a response before the end if March. 
Thank you.

Re: Who has a greater lung capacity a 9 year old boy or a 9 year old girl?