Germs, germ everywhere!
The hypothesis that constantly damp places have the highest amount of germs is proven to be true.
Maintaining proper personal hygiene is important in protecting ourselves from harmful germs that can make us sick. Habits like washing our hands with soap before touching or handling food and maintaining the cleanliness of our living environment by regular wiping and cleaning can help us to lead a healthy and quality life.
The science project experiment can be repeated to test for bacteria at locations like restaurants, schools and other public areas to compare the results.
Try to repeat the science project experiment using personal items like mobile phones, wallets, watches, etc.
What are germs? - http://kidshealth.org/parent/general/sick/germs.html#
Germs, they are everywhere - http://www.webmd.com/parenting/news/20040623/germs-theyre-everywhere
The bacteria should be destroyed before it is disposed of, by pouring bleach into the petri dish to kill all the bacteria before disposing of them in the trash. Alternatively, use a proper biohazard disposal bag.