Dropping a class now?

<p>I’m taking AP Physics and AP Chemistry, and the work load every night is getting worse, and I don’t think I can handle both through the entire year… I already have 3 years of science, and these two would be my 4th and 5th. My question is if I dropped one of them, (most likely AP Physics, since I have a lower grade in that class) would that be a big decision factor?? And I would have to send in a letter of some sort of letter to the UC’s saying that I dropped it, since I marked in progress and planned for both of them on the app, right??</p>

<p>Thanks</p>