This abstract asks you to discover what sources you can test for antimicrobial action by culturing bacteria in the presence of an extract from a source you hypothesize to have antimicrobial properties. Antimicrobial properties have been described by previous science fair investigators in some natural extracts, like garlic (Ashleigh R., 2002; Rajasingham, 2002) and honey (Monier, 2003). To find online resources to further your research, check out this article.