<p>What books do you all recommend for doing well on the science portion? I have Arco's Master the ACT but I get a general feeling that their science portions are much tougher.... I went on the official ACT website and did a couple of sets and found the science portion MUCH easier than the ones on Arco.</p>
<p>The best ACT prep book that I've found is "The Real ACT Prep Guide" by the makers of the actual test. It comes with three practice tests, and explains pretty well how to look at the science portion(as well as the other sections obviously). You can order it from the ACT website if you're interested.</p>
<p><a href="http://www.act.org/store/index.html%5B/url%5D">http://www.act.org/store/index.html</a></p>