Tox Mystery http://toxmystery.nlm.nih.gov/
The ToxMystery website was created by the U.S. National Library of 
Medicine to educate children ages 7–11 about household chemical hazards.
 Toxie the Cat helps kids find the hazards hidden in each room and 
offers hints when needed. When all the risky spots in the house have 
been discovered, Toxie dances and celebrates, and players can print a 
personalized certificate of completion. ToxMystery is available in 
English and Spanish. For elementary teachers of science and health, the 
website features lesson plans, activity ideas, a glossary of chemical 
terms, and quizzes. The site also features a Parent Resources section 
containing links to health and science websites.
Source: http://www.nsta.org/publications/freebies.aspx?lid=tnav 
