ebcast.berkeley.edu/ [berkeley.edu] MIT OpenCourseWare (haven't tried, but hear good things) http://ocw.mit.edu/index.htm [mit.edu] Khan academy (of course) http://www.khanacademy.org/ [khanacademy.org] PAID RESOURCES Kaplan http://www.kaptest.com/ [kaptest.com] (Take something like the MCAT review if you can afford it for science/physics. They do a really good job of distilling the basics of science/biology/etc. without any nonsense. Disclaimer: I've also taught for Kaplan) Also, don't discount old fashioned books: The "Head First" series of books (Try the "Dummies" books also if you're not insulted by the title) Head First Physics [amazon.com] Home Schooling Curricula Whatever you may feel about the social implications of home schooling, there are some excellent science resources which will catch you up. I will shy away from recommending specific ones for fear of inciting a flame war. I hope someone better versed in these curricula can enlighten us with recommendations. Textbooks! Try to get some used textbooks from a used book store, if all you want is the 101 level stuff: Chemistry (Oxtoby-Nachtrieb) http://www.amazon.com/Principles-Modern-Chemistry-Fifth-Edition/dp/B001F39B2Y [amazon.com] (There are many nicely written Biology books -- see what you like) And if you really want to enjoy chemistry: Chemical Demonstrations, Shakhashiri [amazon.com] (Warning: do not try these at home until you know what you're doing) You may also wish to check out your local Makerspace/Hackerspace. You will probably find very educated geeks who'd be more than willing to teach you stuff...