Just took the three science tests on Saturday, with the Physics subtest. Unfortunately, I didn't finish the second constructed response on the Physics exam, even though I knew exactly what to do. Very bummed. Got about halfway through, though I did manage to line up the important equations and proceed partway through. It seems there should be more time for these exams, since I worked non-stop and still came up short. Anyone else have time problems when taking three tests? Anyone know how these are graded, in principle? Ugh!!! The sad thing is, if I had had just 10 more minutes, I would have been fine.