Hello All, I am currently stressed reading through these. I have a BS in Criminal Justice, however I am working towards becoming a Foundational Level Science teacher in CA. With the new NGSS Standards, I will be taking Subtest 215 (1). Simply, is there any one textbook to study for General Science? I went through the forums and found people talking about CK-12, Dorling Kindersley, Usborne (Quicklinks), Quizlet flash cards, Eric Weissteins (website), Cell Alive (website), Physics Classroom (website) ABCs of Nuclear Sci (website), Gene Smith Astronomy Tutorial (website) and CA Geological Survey. Knowing all this is stressful. I haven't dug into each website yet, however I am nervous of spending too much time on the wrong stuff, as well as focusing on my normal life as a BIS and going crazy as to which site/text to use. I have also found courses on Teachers First Prep and Study website. Simply, I have bad test anxiety if I feel I am ill prepared and I just need the best help that I can get towards studying and completing SCIENCE CSET 215. Anything helps. Thanks.