Today we did a lab in which we were imitating a substrate. We started with a paper towel, the ocean floor, and added a graham cracker. The graham cracker serves as the substrate. Adding a layer of frosting(extracellular polymeric substance) helped us realize the plankton needed things to keep them setled on the substrate. Then by adding different sprinkles whe simulated different species. Red coralline algae was red sugar crystals, Diatoms were Brown long johns, Barancles were rainbow sprinkles, Coral was rainbow long johns, and Oysters were dots. By getting different numbers of each sprinkle we realized the different numbers of species in real life. Then we imitated a second season in which we put marshmellows for every 10 barnacles we had. It was a fun lab. Also, it was a yummy treat!!
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