Yeah everything is definitely much longer, and for the sciences its almost entirely out of the passage sometimes. The Verbal section is the most obviously longer one, but what I noticed was that the passages are a bit more clear and less confusing, which kinda helped me out.
I remember for my BS section (3/28 Test), I don't remember using ANY outside knowledge, I was so surprised. There was also HARDLY any physiology (maybe a passage or two) or organic chemistry (a few discretes?). And for PS, I felt like it was another Verbal/BS section, whereas it usually requires the most outside knowledge.
And I also remember the discretes were paragraphs themselves, so timing was definitely a bit of an issue for me... However after looking at the 3/28 thread afterwards compared to some other test dates (April and June dates), it seemed like our test was a freak of nature, almost half the SDNers had voided it or were absolutely freaking out...