Chemical Elements.com [ Kids/Teens/Mature Teens ] - An interactive periodic table with detailed but easy to understand information.
A Level Chemistry [ Mature Teens ] - Contains teachers notes and quizzes on each topic of the A Level Chemistry course, as well as help forums.
S - Cool Chemistry revision [ Teens/Mature Teens ] - Provides revision and teaching materials for both GCSE and A Level standard. The site also contains exam hints and tips.
