The Challenge of Materials is an online gallery of information and graphics of common materials; the site is based on an exhibit at the Science Museum in London. It is divided into four main components. World Changers features materials which have significantly impacted civilization. What are Materials features nine atomic structures of materials and a matching game, complete with snippets of...

This collection of articles from Dave Young of Cytoclonal Pharmaceutics covers select topics in computational chemistry (e.g., molecular vibrations, pharmaceuticals, spin contamination), magnetochemistry, states of matter, and Gaussian, Mopac, and Unix computer languages. The articles are plucked from Young's publication Computational Chemistry: A Practical Guide for Applying Techniques to Real...

Stephen Lower of Simon Fraser University presents this site on a visual approach to acid-base problems. Lower says that although he still finds it important to teach students to solve acid-base problems algebraically, more work should be done using graphics. Here are some of the reasons he gives against the algebraic method: "1) It can be an awful lot of work. Have you ever noticed that many of...

The International Union of Pure and Applied Chemistry's Joint Commission on Biochemical Nomenclature has put online the text of its nomenclatural recommendations for Quinones. These were published in 1973 but were not posted online until this year. The texts include tables, illustrations, and notes.

The International Union of Pure and Applied Chemistry's Joint Commission on Biochemical Nomenclature has put online the text of its nomenclatural recommendations for Tetrapyrroles. These were published in 1986 but were not posted online until this year. the text includes tables, illustrations, and notes.

The International Union of Pure and Applied Chemistry's Joint Commission on Biochemical Nomenclature has put online the text of its nomenclatural recommendations for Lignans/ Neolignans. These were published in 2000 but were not posted online until this year. the text includes tables, illustrations, and notes.

From the University of Oxford Department of Chemistry comes the Pre-University Chemistry Course teaching material Web site. This multimedia learning resource is based on the book Chemistry, Matter and the Universe by Richard E. Dickerson and Irving Geis, and contains more than twenty topics. Users can learn about atoms, molecules, moles, particles, waves, heat, energy, and more through various...

What's That Stuff? Well, the Web site provided by Chemical and Engineering News answers this question on many of those everyday items that are just a bit curious. For example, Silly Putty is a "dilatant compound, which means it has an inverse thixotropy--that is, as a viscous suspension or gel, it becomes solid under the influence of pressure." The site explains the history and characteristics of...

Billed as the first periodic table on the World Wide Web, WebElements: Periodic Table Scholar Edition is authored by Mark Winter of the University of Sheffield, England. Although many similar online periodic tables can be found, this offering is unique in that the material is presented in a light hearted and interesting way. The main page contains the table and all the common associated...

The first Web site, from The Soap and Detergent Association, is called Soaps and Detergents (1). Visitors learn about the chemistry of soap and detergent, their history, how they're manufactured, and more. The easily read text and fun illustrations make this site a great place to start for this topic. The next site, called Bubble Engineering (2), is provided by Bubble Town. The page describes the...