Hi ~I bought the two online TEAS practice tests. They do really gauge your readiness for the actual TEAS. I took mine about 3 weeks before the test though. The practice tests are harder than the TEAS book tests, though they are beneficial for seeing how you score and areas to better focus/improve on. For you, it may be a bit late/waste to do the practice tests now since your actual test is less than a week away. Up to you. If you don't take the practice test(s) do know as much as you can from the Science sections in the TEAS book. The general Science topics are in the book, however, the actual test questions are somewhat harder and more detailed than the book! Especially, Scientific theories/methods/experiments. Reading, Grammar and Math questions are similar to the TEAS book (a little harder than the TEAS book tests) though similar in content and questions asked. A few of my Math problems involved a few geometry and pythangorean theorem questions. YouTube can help you on some of the Science - cell structure, scientific theories/methods, mitosis/meiosis (know these processes well it is guaranteed to be on the test in some fashion), scientific elements/simple equations, acids/bases, photosynthesis, autotrophs vs. hecterotrophs, etc. Lastly, watch the time while taking the test! If you "skip" questions make sure you watch the time and allow enough time to go back to answer these questions. If you are unsure about any question, logically eliminate the wrong answers and if you need to guess - do so. Don't leave a blank answer as it will be counted wrong. If you have time remaining before the next section, you may use this time to take a bathroom break (if allowed) or go onto the next subject/portion of the test. You are tested in this order - Reading, Math, Science and Grammar. I felt Grammar was the easiest, then Reading, Math, and Science (was the toughest though doable). Good luck to you!!