There are many techniques for reading and science, but the one that I benefited the most from was... SPEED. Go as fast as you can go while still being accurate. I won't go in immense detail, but there are several things that help. You do NOT need to read the whole reading passages. Actually, you can't. They are literally too long for you to read them and do all the questions. Read the questions, and do any referring to specific lines or words first. Then, do the others. You will more than likely have to read at least a little bit, but I never read more than two full paragraphs on any passage. Same goes with science. You can find exactly which parts not to read online somewhere, but most of the time intros and a lot of graph info is just uhhh.. useless. Find what is important. Read questions first to analyze what you need, and be extremely careful of small tricks. ACT LOVES those. Using these tips, along with a few other speed techniques, I raised both science and reading scores TREMENDOUSLY. Bottom line-speed.