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The effectiveness of Antibacterial soapFeatured science projectScience project video

Observation

The results show that the antibacterial soap is only effective in killing all the bacteria if the chopstick was washed for more than 2 minutes. If it was washed with antibacterial soap for less than 2 minutes, it was only effective in killing some of the bacteria. Though the non-antibacterial soap also kills the bacteria, it was not as effective as the antibacterial soap.

rate of bacteria growth

Use the graph below to plot the results from the table above.

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Complexity level:
6
Project cost ($):
10
Time required:
1 day to prepare, 5 days for experiment
Material availability:
Easily found
Safety concerns:

The bacteria should be destroyed before disposal. Pour some bleach into the petri dishes to kill all the bacteria before disposing.