Science Resources
Grades Pre K - 6
Useful General Resources
Nova - There is a wide range of video material on a range of science topics at this site. The range on the resources is grades K-12.
CK-12 - A wide range of searchable resources and lessons. The teacher version is here, and the student version is here. The grade range is K-12.
Science Friday - This website follows the podcast, and has new content, and categories to narrow down content. If you are looking for auditory options and articles, this can be a good option for grades 3-12.
PBS Kids - Supplemental games and activities that go along with educational programming. This resource is from K -6.
Supplemental Resources
Peoria Riverfront Museum - They are publishing some demonstration videos. Virtual Science is here, and here is the Virtual Planetarium.
Putnam Museum - The Putnam has several experiments with videos.