Tips for SAT Subject Tests in US History and Biology?

Hey guys,

I just wanted to know if any of you had any tips for preparing for the US History and Biology M Subject Tests as I am going to take them both this Saturday, June 6. I just started studying hardcore as school/finals/AP tests concluded this Friday, which is bad in the sense that I only have a week but good that I have a lot of the APUSH and AP Bio knowledge still in my head!

I’m going to use Kaplan for History and PR for Bio per this guide: http://talk.collegeconfidential.com/sat-subject-tests-preparation/1077242-list-of-the-best-sat-subject-test-prep-books-p1.html, so let me know if these worked out for you or feel free to advise any book that you believe was effective in getting a high score!

I just took the diagnostic out of Kaplan and scored a 700 after 3 weeks of no APUSH, and I have yet to take a Biology practice.

Also, I got a big question for you guys: when taking subject tests, should I skip one when I definitely don’t know the answer like I would do in the SAT, or should I simply guess like on an AP test?

THANK YOU GUYS SO MUCH

SAT II has negative scoring, so you shouldn’t guess unless you can eliminate some answer choices.