The hypothesis is that the lower the concentration of disinfectant used, the higher the level of bacterial resistance.

You will prepare different concentrations of disinfectant, inoculate a Petri dish with bacteria, and measure the zone of inhibition around the bacteria.

You will need a disinfectant, water, 5 Petri dishes, nutrient agar, E. coli culture, syringe, sterile cotton swab, goggles, gloves, pincers, cellophane tape, incubator, alcohol wipes, 5 50 ml beakers, 5 filter paper disks, stirrer, and marker.

The results showed that the diameter of the zone of inhibition decreased as the concentration of the disinfectant decreased. This suggests that the bacteria did not develop immunity to the disinfectant.

This science project is interesting because it explores how bacteria can develop resistance to disinfectants, which is an important topic in the field of microbiology.

Variations to consider include using a different type of bacteria, changing the temperature of the incubator, and using a different disinfectant.

Hey there! Here are some awesome videos about this science project that we think you'll really like. They're not only super fun, but they'll also help you learn more about the science behind the project. So sit back, relax, and get ready to have some fun!!