The McGraw book is cheap... only $15 or so if you buy it from an online store. I found the science parts are really vague . It tells you subjects but doesn't explain them so you can REALLY 100% understand (if you don't already), and it doesn't go very in-depth. I tried the ATI practice test online just now and bombed the science part, plus there were things on there not in the book. I think my A&P textbook would help me more with the science part. Anyway good luck to all taking the test soon. I am freaking out because I have to take it in a week. :eek: I will be OK in English and Math, struggling with science (my A&P class was over a year ago:crying2:)