Courses
Learning paths by subject. Start any course and unlock more chapters with XP.
Biology
Cellular Architecture
Cells, organelles, and the basis of life.
Start course βπ§¬The Code of Life: DNA
Double helix and genetic code.
Start course βπ§¬Anatomy & Physiology
Human body systems and how they work together.
Start course βπ§¬Ecosystems & Ecology
Food webs, biomes, and the balance of nature.
Start course βPhysics
Chemistry
Math
Euclidean Structures
Points, lines, shapes, and space.
Start course βπThe Logic of Change
Differentiation, integration, and dynamics.
Start course βπFractals & Chaos
Self-similar patterns and complexity.
Start course βπStatistics & Probability
Data, chance, and distributions.
Start course βAstronomy
The Solar System
Sun, planets, moons, and small bodies.
Start course ββStars & Stellar Evolution
Birth, life, and death of stars.
Start course βπGalaxies & Cosmology
Structure of the universe at large scales.
Start course βπObserving the Sky
Telescopes, constellations, and navigation.
Start course βEarth Science
Geology & Earth Structure
Plate tectonics, minerals, and rocks.
Start course βπ€οΈAtmosphere & Weather
Climate, weather systems, and air.
Start course βπOceanography
Oceans, currents, and marine systems.
Start course βπEnvironmental Systems
Ecosystems, resources, and sustainability.
Start course βGeography
Physical Geography
Landforms, rivers, mountains, and coasts.
Start course βποΈHuman Geography
Population, cities, and cultural landscapes.
Start course βπMaps & Cartography
Scale, projection, and reading maps.
Start course βπWorld Regions
Continents, countries, and global patterns.
Start course βSpace
Full subject labs
Each subject has Explore, Challenge, Play, Lab Tools, Legends, and Careers.