Food

Advanced Rutabaga Studies Institute
A survey of recent developments in rutabaga science, complete with the Live Rutacam, rutabaga recipes and images from World Headquarters in Forest Grove, Oregon.
http://members.tripod.com/~rutabagas/

Cooking with Chemistry: Liquid Nitrogen Ice Cream
There is nothing like making your own ice cream, but the problem is, it just takes too long to freeze and some things just don't like to freeze.
http://www.polsci.wvu.edu/Henry/Icecream/Icecream.html

Fun with Grapes
Ordinary grapes, when properly prepared and microwaved, spark impressively in an extremely entertaining manner.
http://www.pmichaud.com/grape/

Unwise Microwave Oven Experiments
Stuff not to do.
http://www.eskimo.com/~billb/weird/microexp.html