Solar System & Space
All eight planets and Pluto with NASA fact-sheet data, 40+ named moons, animated orbits, true-scale visualizer, drills, mystery game, and a seeded daily challenge.
Open Solar System & Space7 modules · Science
Science
The natural world from cells to galaxies — biology, earth science, astronomy and beyond. Explore 7 free interactive science modules — no signup, works offline.
7
Modules
Free
No signup
Offline
Works anywhere
Science modules
Each one is a self-contained interactive app — open it and start straight away.
Animal Classification
Kingdom to species drill-down across the animal kingdom — explorer, tree visualizer, classify-this-animal, quizzes, flashcards, mystery game, daily challenge.
Open Animal ClassificationRocks & Minerals
36 rocks across the three families and 60 common minerals with full chemistry, plus an interactive Mohs hardness lab, rock cycle animator, identification key, drills, mystery, and a daily challenge.
Open Rocks & MineralsDNA & Genetics
Interactive double helix, full 64-codon table, transcription/translation engine with preset sequences (insulin, GFP, β-globin), Punnett squares, inheritance patterns, mutation explorer.
Open DNA & GeneticsBiomes & Climate Zones
12 biomes painted on a world map, 18 Köppen-Geiger codes with example cities, 24 city climographs, food webs for four biomes, and drills.
Open Biomes & Climate ZonesWeather & Atmospheric Science
Atmosphere layers cross-section, all 10 cloud genera, fronts and pressure systems, deep dives on thunderstorms / hurricanes / tornadoes, forecast sandbox, atmospheric optics.
Open Weather & Atmospheric ScienceGeology & Plate Tectonics
Plate map of the major + minor tectonic plates, six boundary cross-sections, 25-quake catalog, volcano types and VEI, geologic time column, continental drift animator.
Open Geology & Plate TectonicsOther subjects
Noduly covers 16 subjects in total.