The Genetic Science Learning Center at The University of Utah translates science and health for non-experts.
Science and Life Issues (SALI) is a standards-based, issues-oriented science course that emphasizes the life/health sciences.
PhET Interactive Science Simulations: Fun, interactive, research-based simulations of physical phenomena from the PhET project at the University of Colorado
Interactions Text Student Site: THIS SITE IS DESIGNED FOR YOU, the InterActions student. At this site, you will find all kinds of goodies in form of resources, test preparation tips, practice tests, study strategies and much more.
Build Atoms Yourself: This interactive model will allow you to build atoms of different elements from a collection of subatomic particles.
STOP DISASTERS!: A disaster simulation game from the UN/ISDR
The Physics Classroom: A very helpful site with lessons and animations of important concepts