<p>Or are the tests too different?</p>
<p>they are much too different. I think that mostly SAT studying could do you some good for the ACT, but it shouldn't be all of it, and it won't help for science. But the ACT studying for SAT wouldn't do much good at all.</p>
<p>Because I have SATs this week and ACTs next week, in don't know if I will have time to do both.</p>
<p>math: about the same, SAT tries to trick you more imo.</p>
<p>reading: act has no vocab, ACT's CR is easier and straight-forward, SAT is harder and imo more sophisticated.</p>
<p>writing: both are easy, different formats though. tests the same skills basically.</p>
<p>ACT has science, which SAT does not have. on my ACT test there was a science question that was pure knowledge asking about cell structures in bacteria, but that was only one. everything else is just logic and reasoning, you don't really have to have knowledge of science to own the science section.</p>
<p>essays: ACT asks some prompt about school in relation to the life of a high school student. these are boring-er to do imo. SAT's essay is easier because you have more options.</p>
<p>overall, they basically test the same skills but in different ways. if you're only going to study for ACT, i suggest you just go over some SAT CR passages and perhaps memorize SAT vocab (vocab actually makes a lot of difference, i would have scored 50-60 points higher if i had studied vocab) and then do one or two SAT essays. i'm sure if you study for ACT math and the grammar part you can do well on SAT's math and writing sections.</p>