Entertaining educational videos, mini-lessons and games. BrainPOP Jr. spans topics across Science, Social Studies, Reading, Writing, Math, Health, Arts, and Technology.
Gently encourages young learners to ask questions and form their own ideas.
Multi/cross-disciplinary resource from K-12. Please note that while the site states that it is suitable for elementary/primary, it might be more suited for grades 3 and up.