Scientific vocabulary

I slightly lack vocabulary in the science sector (chemistry/biology/etc), and here I found an excellent site, which offers two podcasts, both providing transcripts, about chemistry and biology. Enjoy!

http://www.rsc.org/chemistryworld/podcast/index.asp

Have you tried the BBC’s science podcasts?

or are they not specialised enough for your needs?

Try http://www.thenakedscientists.com/. Of all British this is the best in my opinion. It is made by a team from Cambridge. There are transcripts, many different voices, an archive for 10 years, several podcasts, all you can dream about.