This site contains animated representations of the functions performed by each part of the cell. It also contains lessons which can be used in any classroom. The home page for the Discovery Channel. This page is set up and maintained by the Zoological Society of San Diego. Through this site you can access the San Diego Zoo and the San Diego Wild Animal Park.
Video tours are available.
It also provides links to many other science oriented web pages. You can click on any of the following links to access various lesson plans on the web. Contains various science lessons aimed at all ages. The lesson plans on animal classification are especially interesting. It offers lessons and projects ranging from gases in a bottle to three dimesional projects on cell structure.