What is difference between ACT and SAT?

<p>Like I know that ACT has science but not CR or other grammar stuff.
Are there more difference?
But why do people take it?? I thought SAT was much more important??</p>

<p>The ACT, in recent years, has become just as important as the SAT. In essence, they are the same when used for admissions purposes, but some students perform better on one test than another.</p>

<p>Here’s a post of mine comparing the two tests:</p>

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