This site contains a series of about a half-dozen pages on sulfur. Topics include; occurence, biological action, and properties.

Excellent source of information on phosphorus including its physical and chemical properties. Highly recommended.

An exceptionally detailed and helpful resource for all sorts of information on nitrogen.

An incredibly thorough site with a wealth of basic information on oxygen. Highly recommended.

This is as thorough as site as you will find for information of all kinds on arsenic. Very helpful.

Kids learn about the nonmetals of the periodic table. Which elements are in this group. Properties, similarities, and other facts are found on this site.

Excellent resource for just about anything you could ever want to know about selenium.

Very thorough site with just about everything you could ever need to know about silicon.