The 5-Second Rule 

emilys class

Emily Porter-Goff’s living environment classes wanted to test out the “five-second rule.” This is the theory that something dropped on the floor is safe to eat/consume if it’s on the floor for 5 seconds or less. The students first hypothesized the best place in the school to apply the rule. They were then put into groups, each of which chose two locations around the school to swab for testing. They then cultures the bacteria found. The students counted the colonies on their plates and their results were graphed. The handle to the urinal in the gym bathroom was the dirtiest place in the school. This activity, and others, was put into a full lab report so that the students understand how to explain their research more fully.