Methods & Materials 
    Since both cleaners advertises that they would not leave germs (such as bacteria) on sponges after use; this property was tested. However in the case that they both would test positive for this property another more accurate method would be used to find out which cleaner would kill more bacteria under the same conditions.
     To see if the cleaners would not leave bacteria on sponges a unique method was used. Twos sponges were taken and each was saturated with a different cleaner. Then Escherichia coli was applied to the sponges using sterile cotton swabs. After an hour another sterile cotton swab was used to take samples from each sponge and transfer the each sample to a different  petri dish which contained agar (agar was obtained in ready to use form and was poured in the petri dish at an angle to maintain sterilization). The two petri dishes were then incubated for 24 hours and then taken out and the results were then taken.
 This method tested the cleaners effectiveness on a surface. However to test how effective these cleaners are in stopping the spread (growth) of Escherichia Coli another method was used. In this method agar was obtained in solid form and then liquefied in a hot water bath. Then 10 sterile petri dishes were divided (using a permanent marker) into 4 sections. Then Each petri dish was opened at an angle, to maintain sterility and agar was poured in from the bottle just enough to cover the bottom of the petri dish. These petri dishes were then placed in the refrigerator so that the agar may turn in to a gelatin like substance.
     Escherichia Coli was obtained in liquid sterile form in a test tube. Then a sterile cotton swab was used to transfer the Escherichia Coli from the test-tube on to the petri dish. For this to be done the petri dishes (which were prepared with agar earlier) were opened at an angle to maintain sterility, and when painted the first time with Escherichia Coli, they were then rotated at a 90° angle and painted again with escherichia Coli to make sure that every spot is covered. Then these petri dishes were once again placed into the refrigerator.
 Now a 20% concentration of Palmolive and Comet cleaner was made. Each new solution was constantly stirred because these cleaners did not dilute well with water. Then ¼ inch sterile filter paper disks were prepared. These disks were then dipped into the solution (either comet or Palmolive 20% solutions) and then placed in the petri dish in one of the 4 sections (see Figure 1). Thus each petri dish had two disks dipped into Palmolive solution, and two disks dipped into comet solution to total 8 petri dishes. 2 petri dishes were prepared with blank disks to serve as the control. All these petri dishes were than incubated for 24 hours. They were then taken out and the results were taken.