Help me self-study for Chemistry, Biology and Literature

<p>I'm taking the Chemistry, Biology, and Literature subject tests much later this year (November or December), but I'm homeschooled, and so I've never really studied these subjects in much detail. Basically: I need to learn these subjects from practically nil, in about six or seven months' time.</p>

<p>I've got the Barron's Chemistry, Princeton Review Biology, and Barron's Literature books sitting next to me- how should I go about studying them? </p>

<p>Can I start working through the books (they contain lots of information, and aren't just chock-full of questions) immediately, or is there anything I need to learn first?</p>

<p>Any advice (or even just a good-luck, lol) would be much welcome :). </p>

<p>Thanks!</p>