Nicotine and cancer
Our hypothesis, that the human colorectal adenocarcinoma cells will grow at a faster rate after being exposed to nicotine, is proven to be true.
Despite the avalanche of publicity campaigns targeted at educating the public on the dangers of smoking to human health, most smokers still find it difficult to stop the habit. The presence of nicotine in the cigarette makes smoking addictive. However, this comes at a great cost to the health of the smoker and all those around him
This science fair project can also be repeated using other tissue, such as human prostrate carcinoma samples.
Try to repeat the experiment by exposing the tissue to cigarette smoke.
Colon cancer - http://www.medicinenet.com/colon_cancer/article.htm
How nicotine helps cancer grow - http://www.newscientist.com/article/dn9598-how-nicotine-helps-cancer-grow.html