In reply to PebblePusher: Some good advice there. I went back to college a few years ago, 12 years after leaving school with awful quals. I did chemistry, now just about to start my final year of my degree. It's not too difficult at A level, but, you still have to put the work in. The more you keep reading about general areas of chemistry, the easier it will get. Familiarise yourself with all the basics, and maybe parts of organic, inorganic and physical chem. But, with a good teacher, you will be fine, just put the work in and enjoy it. Was the best thing I've ever done.