Experiment

We are talking about bacteria again. We are talking about where there is less bacteria, here are some places, the oven and a frezzer. There are more places but those are only some. We are also talking about where a lot of bacteria is, the air vents and underneath the wrestling mat and their are more. We are also making an experiment. We are going to make in a petry dish we are going to make 2 places where there is more bacteria and less bacteria. We took a sterilized swab rubed it agains our surface and then rubbed it on the part of the petry dish that has the initials of the surface we took. For example we took an air vent then rubbed it with the sterilized swab then rubbed it on the air vent corner. Now we can see tracks. We think the tracks are bacteria.

VP