I used REA CLEP general exam study guide and encyclopedia.Good CLEP/DANTES info here:www.bain4weeks.com Good luck.
For the Natural Sciences I studied the Peterson’s Guide Cracking the CLEP The Online Biology Book (online, excellent and FREE) The Best Test Prep CLEP I really enjoy earth/natural science so I dug deep into the info. The online source listed is OUTSTANDING and did I mention free? Good Luck with the exam -John
Personally, I passed it with the 9th grade Physical Sciences textbook published by ABeka books. The test was fairly simple if one can understand scientific concepts...though there were a few patently unfair questions such as "How old is the sun?" and then something to do with the order of the evolution geologic column. Well, I did write a letter afterwards (never got a response, btw) pointing out that 1.) every single textbook ever printed has different ages for the sun and 2.) the geologic column only exists in one place in the world, and it is a conveniently ignored fact that if one goes to the other side of that mountain, the layers are all scrambled up. You'll do great on the test, though; so don't sweat it! It was one of the easiest tests I have ever taken. Etienne ___________ Life being what it is, one dreams of revenge.