ACT science & other things

<p>Out of all of the sections this is the one I struggle the most with. I mean what's the best way to approach this. I haven't really had a science class with only one teacher. Usually they quit or get fired. That's beside the point though. I really haven't learned science since about 8th grade. So I suck terribly at it. If you could somehow help me increase my score to high twenties I would be grateful. I'm not asking for 30's just high 20's. :D
I got a 22 :( which brought my composite down to a 28. I really want a 30 or higher and I'm going to take the test in either september or october (when I feel I am ready). Please don't direct me to others threads
Also.....
I have bought and used act red book, cracking the act and 1296 question to study from. What are the best books to use for all subjects not just science that I haven't already listed. Should I take tests I have taken months ago? Thanks in advance</p>