<p>I would also advice to strongly think about whether or not you take Honors Classes (if that is an option to you) for your science classes. The honors chem and physics classes are really tough-- but they are curved more than a regular class. Back when I was a freshman, the professor who taught honors bio was said to be easier and better than the regular bio professors. Honors Calc is also a very difficult, very theory-intense class.</p>
<p>So really, it comes down to: How much work do you think you can handle, how rigorous do you want your courseload to be, and how good of a GPA do you want. Thinking about your schedule in those terms (and things like how much time you want to devote to studying vs. being in clubs vs. hanging out vs. etc. etc.) will help you determine what kind of classes to take to get the GPA you want to.</p>