i passed my TEAS exam today. i think it's ridiculous that there are only 30 science questions. be sure you study the rocks as silly as that sounds. brush up on your dna & rna structure, punnet squares (set up & read), specific heat, be able to read and understand the periodic table, basic physics, basic scientific reasoning (go with your gut instinct), tertiary is a good word to know, covalent bonds and also memorize the definition of one word EUKARYOTIC. tee hee. english and reading is pretty simple. this was the easiest part of the test. if you have problems figuring out where to put a comma, just read the sentence to yourself and where you would take a natural breath, add the comma. for math, you will need to know how to convert fractions, multiplying, adding and dividing fractions, decimals, proportions, ratios, how to set up and solve word problems, basic math skills (don't make silly mistakes), mode, mean, median, algebraic expressions, reading charts, converting celcius to farenheit, metric conversions, simple formulas, inequalities etc. PEMDAS is your friend. i absolutely hated how the ATI book was set up. the chapters discuss topics but be sure you take the practice tests as there is valuable information in these questions that ARE NOT discussed in the chapter prior. it's maddening! i scored in the 90th percentile in reading and english, 69 in math and 70 in science. hope this helps.