by Becca Fanucci
Bacteria is literally everywhere. In fact, it’s estimated there are more bacterial cells in your body than human cells! Students are always fascinated with growing bacteria. It’s an awesome way to discover which surfaces are dirtier than others… or whether the “five second rule” about dropped food is really legitimate. I usually present my bacterial culture lab during the first week of school. Not only are students engaged, but it’s a good way to review variables and the steps needed to set up a controlled experiment.