Will W.
The purpose of this experiment is to see which doorknob has the most bacteria the inside or the outside. Also to see weather the males or females have the most bacteria. To carry out this experiment you need 6 bathrooms 3 male 3 female They should be in 3 sets (Female-Male set A Female-Male set B female-Male set C. You need to swab each doorknob in a zig zag form. Then rub the swab over the agar in one of the petri dishes. One petri dish and one swab is used for each doorknob. After you are done swabbing label each Petri dish with a symbol indicating what door the bacteria is from. This will help when you are done looking at the results. When done put the dishes in the Incubator.
When the experiment was finished it was found that the boys had the most bacteria then the girls. For the boys bathrooms it went A with the least, then B, then C with the most. For the girls it was also A with the Least then B, then C with the most. All the inside doorknobs totaled up to 24 square cent. of bacteria for the Outside it was 4.75 square cent. of bacteria. the average for the inside was 4.83 square cent. of bacteria. For the outside it was .79 square cent. of bacteria.