School subjects
- 3Blue1BrownVisual explanations of mathematics and related concepts.
- ABCyaEducational games organized by grade level and subject.
- Bedtime MathEveryday mathematics activities designed for families and children.
- BetterExplainedIntuitive explanations of mathematical concepts.
- BrilliantInteractive problem-solving courses in math, science, and computer science.
- Chemistry LibreTextsOpen chemistry textbooks, course materials, and reference content.
- ESA KidsEuropean Space Agency educational space content for children.
- ExploratoriumHands-on science activities, experiments, exhibits, and learning resources.
- Free Kids BooksFree children's books and educational reading materials.
- Generation GeniusScience and math learning videos and classroom resources; free access may be limited.
- HHMI BioInteractiveFree biology and life-science educational resources and interactives.
- HyperPhysicsA concept-map-based reference covering major topics in physics.
- International Children's Digital LibraryDigital collection of children's books from around the world.
- Learn.GeneticsInteractive genetics and bioscience learning resources from the University of Utah.
- LEGO EducationLesson plans and hands-on STEAM learning resources from LEGO Education.
- Math AcademyAdaptive mathematics learning platform.
- Math PlaygroundMath games, logic activities, and problem-solving exercises.
- Mystery ScienceScience lessons and activities for elementary learners and teachers.
- NASA Climate KidsChild-friendly climate, weather, earth science, and environment resources.
- NASA Space PlaceNASA space and earth-science activities, games, and explanations for children.
- Neuroscientifically ChallengedAccessible explanations and videos covering neuroscience fundamentals.
- NRICHMathematics problems and enrichment activities from the University of Cambridge.
- Oxford OwlReading, mathematics, and home-learning resources for children and parents.
- Paul's Online Math NotesFree algebra, calculus, and differential equations notes and tutorials.
- PhET Interactive SimulationsInteractive simulations for physics, chemistry, mathematics, earth science, and biology.
- Reading BearFree phonics and early-reading learning program.
- Science BuddiesScience-fair projects, experiments, STEM activities, and project guides.
- SplashLearnGrade-based mathematics and reading practice with free and paid features.
- StarfallEarly-learning activities focused on reading, phonics, mathematics, and language.
- Storyline OnlineChildren's books read aloud by actors and performers.
- StoryWeaverOpen multilingual digital library of children's stories.
- The Feynman Lectures on PhysicsOnline edition of Richard Feynman's classic physics lectures.
- The Physics ClassroomTutorials, interactives, and resources for learning physics.
- Unite for LiteracyIllustrated digital books with audio narration in multiple languages.