Hello I'm taking the teas in about a week and a half and I have been studying the ati study guide and the McGraw hills practice test book but after reading here I have seen people say the ati book doesn't elaborate on some science subjects very well. Can someone please give me the information I need to study more in depth online? I was thinking about just watching videos on every subject in the science section but that might be too time consuming. Any advice is highly appreciated.

Go to the ATI website and take the practice test....it does cost 40 dollars, but it will print out exactly like the real one and it tells you what you missed and exactly which page in their study manual to get help. They will let you do two test for practice. Good luck!