In the process of checking out the toxicity of sulphur dioxide as a food preservative, I discovered The Royal Society of Chemistry website, which contains a wealth of information on the chemical sciences.
The visual elements of the site are spectacular. The Visual Periodic Table is especially attractive and informative: http://www.chemsoc.org/viselements/index.htm .
The Chemsoc Timeline is a visual representation of the history of science. Check it out here: http://www.chemsoc.org/timeline/index.html
Students of chemistry will be delighted with the interactive version of the IUPAC compendium of chemical terminology, known as The Gold Book. Check it out here: http://goldbook.iupac.org/
Would you like to research food preservatives? Go here: http://www.chemsoc.org/ExemplarChem/entries/2001/anderson/preservatives.htm#e220
The LearnNet section of the site contains several excellent teaching and learning resources: http://www.chemsoc.org/networks/learnnet/index.htm
Home page: http://www.rsc.org/
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