crazykim

Thanks for your comment and good luck wish! No, the toilet, the door handle and the remote were swabbed with sterilized swabs brand new in the pack. Our fingers never touched the minced or powder garlic. It's the craziest thing to see how wild the bacteria has grown in those portions of the dishes!

We need help with a science fair project please. This is an 8th grade project and my son wanted to do garlic versus bacteria. We took 12 petrie dishes, divided and filled each with agar. On one-half was either a clove of garlic, garlic powder or minced garlic with the other side containing no garlic. He then swabbed the toilet, the door handle the TV remote and rubbed the swab in each part of each petrie dish. After 10 days the bacteria has grown wild (doubling) in the sides of the petrie dishes with the garlic. What does this mean? Did we do the experiment incorrectly? Thanks so much for your help with this. In reading over this, maybe I wasn't so clear. The swab from the toilet bowl was rubbed in 3 dishes, the swab from the door handle another 3 and the swab from the remote in the remaining three. His science teacher said not to try more locations as that would add too many variables. Thanks agian.