Do you think 3 science classes is a bit too much for a semester? I know it would be great preparation for medical school since the course load there is heavy in the science, but I am afraid of my GPA suffering. I would be taking physics with lab, biochemistry with lab, and the third would be a molecular biology lecture with no lab component. I would also have 2 core classes on top of it. Does this sound like a good idea or is it too much? The most science I ever took so far was 2 classes a semester.