Fair Test Lab
Design fair tests at six science stations. Find hidden variables, collect repeated measurements, and explain your evidence.
Launch Fair Test LabInvestigate Earth's systems and its place in space, from rocks and oceans to planets and orbits.
24 activities in 7 units · 5 simulations, 8 practice activities, 11 labsDesign fair tests at six science stations. Find hidden variables, collect repeated measurements, and explain your evidence.
Launch Fair Test LabRun the Graph Clinic: diagnose and fix sick lab-report graphs, then read them: values, slopes, trends and outliers. 10-question runs.
Launch Graph DoctorDispatch trains at the rail yard: couple conversion-factor cars so units cancel, then deliver the amount with the right sig figs.
Launch Conversion RailroadRun the lab's measuring desk: read cylinders, burets, rulers, thermometers and balances to the right digit. 10-question runs.
Launch Read the GlasswareRun a glowing-sign shop: drop hydrogen's electron to make each colour, land photons on the spectrum and identify gases by their lines.
Launch Neon Sign ShopFilm the Sun: set Earth on its orbit, read the tilt, and predict seasons, noon Sun angles and day lengths. 10-question runs.
Launch Seasons StudioMake gas tubes, flames and streetlights glow, watch electrons jump between levels, and read line spectra, starlight and redshift.
Launch Atomic Spectra LabStretch orbits, sweep equal areas, race the planets, and launch probes, then take a test at your level.
Launch Kepler's LawsTilt Earth, follow the Sun across a schoolyard sky, heat plates under a lamp, then test the closer-to-the-Sun idea with real data.
Launch Seasons & Sunlight LabMove the Moon around Earth to see why it has phases, why its tilted orbit makes eclipses rare, and why tides swing between spring and neap.
Launch Moon Phases, Eclipses & TidesWatch a cold nebula collapse into a spinning disk, grow dust into planets, and ignite the Sun, then take a test.
Launch Solar System FormationForge a star of any mass and watch it live and die, plot real stars on the H-R diagram, trace where elements come from, and age clusters.
Launch Stellar Life Cycles & the H-R DiagramRun Earth's rock recycling plant: line up uplift, weathering, melting and more to turn one rock into another. 10-question runs.
Launch Rock Cycle RecyclerBe a geologic detective: put a cliff's layers, faults, dikes and erosion surfaces in order, then date the rocks. 10-question runs.
Launch Rock Layer DetectiveTest 3D mineral and rock specimens with a streak plate, scratch kit, acid, magnet and hand lens, then identify the unknowns.
Launch Rock & Mineral ID LabA living cross-section on a deep-time clock: cool magma into crystals, cement river grains into rock, and follow one grain around the cycle.
Launch Rock Cycle LabRead a cliff’s history from its clues, date samples with radioactive clocks, and place fossil beds on the ICS time scale.
Launch Geologic Time & Fossils LabBuild stress at plate boundaries, slip faults, race seismic waves, find an epicenter, and plan for earthquake hazards.
Launch Fault LinesDrill and date seafloor cores for spreading rates, read mirror-image magnetic stripes, and grow trenches, arcs and mountains.
Launch Plate Tectonics & Seafloor SpreadingExplore gyres, the Coriolis effect, upwelling, density-driven circulation, and the AMOC with real climatology data.
Launch Currents: Ocean CirculationBe the energy bouncer at Earth's front door: route sunlight and infrared photons, rank albedo and keep the energy budget balanced.
Launch Greenhouse Photon BouncerChill a cup until dew forms to find the dew point, lift air up a mountain until a cloud forms, and keep a lake's water budget.
Launch Water Cycle & Weather LabFollow sunlight in and heat out, find which gases trap infrared, then test the model against real CO₂ and temperature data.
Launch Greenhouse Effect & Climate LabRun forest and ore stocks year by year, weigh energy return against life-cycle emissions, and find how much rock a tonne of metal costs.
Launch Earth Resources & Human Impact LabNo Earth and Space activities match “”.