I purchased the McGraw Hill study guide and "The Secrets of the TEAS Exam" (not worth it). Although McGraw's study guide is very comprehensive, I still feel it is inadequate for the new TEAS V Science section. So, I went to do some research and I found this website that may help. It includes 16 different groups of flash cards that may help. I haven't gone through all flashcards thoroughly yet. It still doesn't hurt to take a look. There are anatomy, life science, earth and physical science and other categories. I'm not sure if there is Chemistry or if there is Physics. For Chemistry, I've been mainly going to youtube to help me understand the concepts again, in addition to the McGraw Hill study guide.
Also, I found a website (by McGraw Hill) that may help as well. It's for GED but the topics and questions may apply to the TEAS V Science.
I take my exam on September 29th. I wish you all the best and goodluck.