Please note: This site contains Macromedia Flash animations, if you are having difficulty viewing the animations you may need to download Flash Player which should only take a few minutes. You can also download the latest version of Microsoft Internet Explorer.

When you click on a link or button to open an animation the Flash file will open in a new window. There may be a short delay whilst your browser detects the required plugin and the movie begins to load.

Each animation displays in a console which has controls similar to a Video Player, you can navigate through the movie using these controls or hit enter when asked to press play.

This site was produced by the Chemical Industry Education Centre, a joint initiative of the University of York and the Chemical Industries Association.
A grant from the Department of Trade and Industry enabled the production of the site to be carried out. In addition many organisations have contributed to this site.