All Science Fair Projects

Over 1000 FREE Science Fair Project Ideas!

The effectiveness of Antibacterial soapFeatured science projectScience project video


This experiment was done to find out if antibacterial soap is more effective in killing bacteria than normal soap. This will help us decide whether we should spend more money to buy antibacterial soap or just use normal soap.


Anti bacterial soap will kill more bacteria than normal soap.

Scientific Terms

bacteria, petri dish


Antibacterial soap

Antibacterial soap contains certain chemicals such as triclosan, which helps kill bacteria. However these chemicals are effective at targeting only some types of bacteria. Since there are many types of bacteria, a particular antibacterial soap may not be effective in killing all forms of harmful bacteria which we come into contact with.

There is growing concern that the overuse of antibacterial soap will cause bacteria to evolve and become immune to the ingredients used in antibacterial soap. Another concern of overuse is that the use of antibacterial soap reduces our own immunity to bacteria because our bodies have not been exposed to bacteria.

In addition, it is interesting that many websites and publications state that it is sufficient to wash our hands and bodies with warm water and ordinary soap to prevent infection.

See our all-time most popular science projects
Search science fair projects Browse science fair projects
popular science fair projects
Complexity level:
Project cost ($):
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.