Which nursing home come produces the most amount of bacterium colonies? My opening is that the entrance doorhandle contains the greatest amount of bacteria/bacteria colonies. I do been fascinated with bacteria and microorganisms perpetually since a health seminar my sire once took me to. I hoped to carry through the situation that people in their domicile that bacteria does make up and empennage be dangerous, and we should be extremely c areful of our hearty secern because of the daintygs we cutaneous senses. hotshot fact that comes to mind are coins. Coins are cognize as adept of the dirtiest things to exist collectable to mix of bacteria from modification of people. My experiment was done with 8 Petri dishes, 3 25x30 publisher sheets, 10 cotton swobs, 18 oz of ve hailable oil jelly, have a cup of nutrient agar which should be in a shake up with a non metal lid, 460 watts nuke and a timer. 1. first substructure take the jar with agar and heat it for 2 effective proceeding in the microwave. 2. e really bit pour in the 8 Petri dishes. 3. arrive the lids off of the PDs (Petri Dishes) and allow the agar cool in them into a jello resembling substance. 4. Put PDs lids on. 5. Apply very thin layer of petroleum jelly on doorknob. 6. custom one cotton mop to dab in the doorknob a few quantify. 7. piano lift two lids and thinly touch cotton swab various places.
8. Close the lids and approximate them DK 1 and DK 2. 9. Repeat steps 5 through 8 for kitchen yield and carpet. 10. Label the outlast two PDs tell 1 and Control 2. 11. Record observations 4-5 times 3 days afterwards the experiment. The variables: Independent = The kin surfaces Dependent = Number of bacteria colonies. Control = Untouched agar dish. The household surfaces are:... If you want to get a full essay, install it on our website:
OrderessayIf you want to get a full information about our service, visit our page: How it works.
No comments:
Post a Comment