I'm taking calculus, physics, com sci, physics lab, and a life science class w/ lab this quarter and I feel like I'm having a hard time memorizing all that material I'm being taught, especially for math and physics since there are so many equations in physics. The homework load is manageable so far, but math, physics, and computer science are all very time consuming classes. How do I know whether I'm taking too many math and science classes? What is a good number of math and science classes per quarter? Also, are schools that are on a semester system necessarily easier (in terms of having math and science classes more spread out)?