Biology: Tea Tree Oil Effectiveness

Hi, I simply don't have time for this, so I need someone to do it for me. I need a experiment done that involves testing the effectiveness of tea tree oil killing ecoli (specifically the K12 strain) compared to other disinfectants/cleaning solutions. Here's the basics: Investigative Question: Does tea tree oil have a higher rate of disinfection than other company-made disinfectants and cleaning solutions? Hypothesis: If I apply tea tree oil to K12, then the tea tree oil will destroy or contain the bacteria more efficiently than leading disinfectants because has a higher amount of antiseptic and antibacterial properties. I need to test whether this is true or not. You would test it against the following: hand sanitizer(purell), sanitized water(for a control), and Listerine. You will need to follow standard ISEF rules: [login to view URL] I would assume you have done similar projects and know how to go about everything. I will need your step by step process detailed, the end results, everything you used in the experiment and whatever else you think is necessary to know. Thanks!