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