Dramatic Results!

Yesterday, I described some of the experiments my students designed to find out more about where bacteria grow and under what conditions. All told, the students streaked about 50-60 petri dishes with bacteria. In the first 24 hours of the experiment, only ONE of those petri dishes showed visible bacteria growth: the dish streaked with bacteria from a toilet in the boys' bathroom. Not the girls' bathroom, not the teachers' bathroom, not students' or teachers' mouths, not our bellybuttons, not our sweaty armpits, not the doorknobs of any room in the school... only the boys' toilet seat sample.