Biofilm Simulation At The G.C. Marine Reserve

On Friday, March 28th, we did an experiment with graham crackers and other delicious treats. Our teacher had told us all week that we were going to do something with food and we were prepared! The reason for this experiment was to show how much stuff grows underwater. We used different items to show different species/things in the ocean. The paper towel showed water, the graham cracker was a the substrate, the icing was the EPS, red sugar crystals were red coralline algae, brown long johns were diatoms, rainbow sprinkles and marshmallows were barnacles, rainbow long johns were coral, and blue or green dots were oysters. We got each item at a time, sprinkling a little of each thing on our cracker. When we sprinkled some of the items on the cracker, not all of them made it, this simulated that not all species in the ocean attacth which means they die.