Get Active, Stay Active (class fitness log) http://www.getactivestayactive.com/
PE Central- Kids Quiz (earn rewards for answering questions) http://www.peclogit.org/kidsquiz.asp
Kids in Action http://www.getkidsinaction.org/kids/#home
BAM! (games and information about health and fitness) http://www.bam.gov/
Sports Illustrated for Kids http://www.sikids.com/
Exploratorium Sports and Science http://www.exploratorium.edu/sport/
President's Challenge (Active Lifestyle Challenge) http://www.presidentschallenge.org/the_challenge/active_lifestyle.aspx
Science fun and information! Click on "LINKS" at the bottom of the home page for more science websites. http://www.sciencemaster.com
Science notes, activities and quizzes http://www.biology4kids.com