It has to be related to biology and also i am willing to spend a little money on it…not too much though
When I had a science fair I did something to do with what your lungs look like when you smoke. You put a couple of cotton balls in a sandwich baggie and then get a cigerate and make the cotton balls turn black which is suppose to be what your lungs look like when you smoke. You just put some more information of your own about smoking and your done! I got a C on that and won 3rd place when I was in 5th grade
January 25th, 2010 at 12:19 pm
When I had a science fair I did something to do with what your lungs look like when you smoke. You put a couple of cotton balls in a sandwich baggie and then get a cigerate and make the cotton balls turn black which is suppose to be what your lungs look like when you smoke. You just put some more information of your own about smoking and your done! I got a C on that and won 3rd place when I was in 5th grade
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