The following books and websites contain additional information, activities, and enrichment options.

Air: Outside, Inside, and All Around

Darlene Stille, Picture Window, 2004

Experiments With Air

Salvatore Tocci, Children's Press, 2003

Air Science Tricks

Peter Murray, Child's World, 1998

U.S. EPA Environmental Kids Club

http://www.epa.gov/kids/

For additional websites, see the Best of the Net feature at www.eduplace.com/science and sites recommended by the National Science Teachers Association at www2.nsta.org/sciencesites/