<p>Let me correct that bovertine, the Science section has some content, but it is relatively basic chemistry and biology (I had never had chemistry or physics when I took the ACT way back when, I was self-taught, but I did pretty well on the science, it was just common sense to me) and the rest is critical thinking. The grammar is content, and math obviously. The SAT, however is less of a content test - not the SAT IIs.
MCAT is almost all content.</p>