I have to write up a lab related to pepsin. I did an experiment in class but unfortunately it did not turn out how I wanted it to be and I did not collect my results properly. Maybe someone has done a pepsin experiment before and could help me out. This is what I thought of for my new experiment but I don't have results. Its just an idea but please give me another pepsin related experiment if you can. Aim of the experiment: The aim of this experiment is to test whether temperature affects the rate of which pepsin reacts to egg albumin (Source of protein). Hypothesis: “If the temperature varies, then the rate at which the pepsin digests egg albumin will change”. Variables: Independent Variable – Temperature range. Dependent Variable – Rate at which the pepsin digests the egg albumin. Constant Variables – amount of pepsin, amount of rare egg white, amount of acid, temperature, stopwatch.