“See if you can guess what I am now … I’m a zit. Get it?” - Bluto
Background:
The purpose of the antiseptic lab was to show the effectiveness of multiple antiseptics: hydrogen Peroxide, Purell hand sanitizer, Water and Iodine.
The procedure of the lab for the first day involved our group acquiring a cotton swab and using the swab to gather the Propionibacterium acnes (P. acnes) bacteria from various spots around our face, we then grabbed a Petri dish filled only with a thin layer of agar. We proceeded to swab the P. acnes bacteria off of the cotton swab (gently to not break the agar) into the Petri dish. Once we had completed swabbing the P. acnes over the agar we closed the Petri dish, taped over the dish and then wrote our initials on the dish and handed both to Mr.Breines who then put the Petri dishes into an …show more content…
Two ways this experiments data could be considered more reliable is that, there were many runs of the experiment done all with the same parameters and the results are an average of all of the groups’ data. Another reason would that each group could have done the experiment slightly differently and gotten a different result thus showing what changing a variable can do to change the results. One region of bias in this experiment would be that one of the antiseptics used was the Purell hand sanitizer, which is intended to be used on ones hands instead of the face, so it would work less effectively than intended. Two experimental errors our group could have made would be: The agar could have been broken thus preventing bacteria from growing in the gash made. Or our group could have transferred more bacteria to one of the quadrants and not equaled the amount of bacteria in the other quadrants of the Petri
Background:
The purpose of the antiseptic lab was to show the effectiveness of multiple antiseptics: hydrogen Peroxide, Purell hand sanitizer, Water and Iodine.
The procedure of the lab for the first day involved our group acquiring a cotton swab and using the swab to gather the Propionibacterium acnes (P. acnes) bacteria from various spots around our face, we then grabbed a Petri dish filled only with a thin layer of agar. We proceeded to swab the P. acnes bacteria off of the cotton swab (gently to not break the agar) into the Petri dish. Once we had completed swabbing the P. acnes over the agar we closed the Petri dish, taped over the dish and then wrote our initials on the dish and handed both to Mr.Breines who then put the Petri dishes into an …show more content…
Two ways this experiments data could be considered more reliable is that, there were many runs of the experiment done all with the same parameters and the results are an average of all of the groups’ data. Another reason would that each group could have done the experiment slightly differently and gotten a different result thus showing what changing a variable can do to change the results. One region of bias in this experiment would be that one of the antiseptics used was the Purell hand sanitizer, which is intended to be used on ones hands instead of the face, so it would work less effectively than intended. Two experimental errors our group could have made would be: The agar could have been broken thus preventing bacteria from growing in the gash made. Or our group could have transferred more bacteria to one of the quadrants and not equaled the amount of bacteria in the other quadrants of the Petri