Brain Pop (4th-6th)
Brain Pop Jr. (K-3rd)
Research over Animals, Science, Biographies, & Social Studies (K-3rd)
Online encyclopedia with tabbed information for different age ranges (K-6th)
Kiddle: Safe search engine for kids.
National Geographic Kids
Discovery Education
Use student email login to access resources.
NASA Space Place for kids
KidRex is a safe search engine through Google that will filter results so students get kid friendly articles.