Look what is Growing

Preparing for the final steps of Sean's experiment. You can see the dots, those are bacteria colonies. Fun stuff. To make agar plates, simply buy agar flakes at Whole Foods or another store. Mix according to the package directions and add to the petri dishes. For Matthew's sterile plates, we boiled the petri dishes and made sure all utensils were sterile, etc. This way we knew if water grew from the water samples, there really was bacteria in the water!