Before you start
Most popular
Ecosystem Lab Pull one thread — remove the otters, bring back the wolves — and watch the trophic cascade ripple through the food chain. 
Restoration Scenario Predict how a real conservation project turns an ecosystem around, then watch life return. 
Predator & Prey Predict how two populations rise and fall together over time. 
EcoSphere Journey A path through every kit — clear each stop of real practice, then move on. All activities
Predict-and-observe labs
Ecosystem Lab Energy flow, the ten-percent pyramid, and who-eats-whom — trace a trophic cascade one chain at a time. Predator & Prey Predict how two populations rise and fall together over time. Restoration Scenario Predict a conservation project, then watch life return. Food Web Detective Add each energy-flow arrow from what you observed. Energy Pyramid Predict how much energy survives each 10% step. Teach the Cast Teach an ecosystem idea to a cast member still learning it — teaching makes it stick.
Practice & play
Mixed Practice A short round across the kits you have played — brought back to make it stick. EcoSphere Sprint Race your OWN best on what you already know. Timer optional, no penalty for a miss. Trick Questions Brain-teasers with a twist — spot why the obvious answer is a trap. Ecosphere Duel 2–4 players take turns on one device — same questions, highest first-try score wins. Or open an online room. Progress Your levels, streak, and how each skill area is coming along — saved on this device. Progress report For grown-ups — a private on-device snapshot mapped to the skill areas. Export a CSV or print.
Concept Kits — 16 kits from Earth's spheres to conservation
Kit 1: Earth's Four Spheres Earth's spheres · grades · 25 questions Kit 2: The Carbon Cycle Cycles of matter · grades · 25 questions Kit 3: The Water Cycle and Climate Cycles of matter · grades · 25 questions Kit 4: Ecosystems and Energy Flow Ecosystems & energy · grades · 25 questions Kit 5: Weather and Climate Patterns Weather & climate · grades · 25 questions Kit 6: Human Impact on Earth Systems Human impact · grades · 25 questions Kit 7: Natural Resources and Energy Resources & energy · grades · 25 questions Kit 8: Climate Change Science and Solutions Weather & climate · grades · 25 questions Kit 9: Biome Diversity Biomes & habitats · grades 6-8 · 25 questions Kit 10: Aquatic Ecosystems Aquatic ecosystems · grades 6-8 · 25 questions Kit 11: Human Impact on Ecosystems Human impact · grades 6-8 · 25 questions Kit 12: Conservation Biology Conservation · grades 6-8 · 25 questions Kit 13: Cross-Topic Connections Connections & synthesis · grades 5-6 · 25 questions Kit 14: Real-World Applications Connections & synthesis · grades 6-7 · 25 questions Kit 15: Misconceptions & Reasoning Reasoning · grades 6-7 · 25 questions Kit 16: Advanced Synthesis Connections & synthesis · grades 7-8 · 25 questions
More ways to play
Same idea, another world
😄 Brain break
Meet the cast — the characters who teach this
-
Chain Food chain / trophic flow (energy moving up levels) -
Niche Ecological role / job-in-the-ecosystem -
Phase Succession / ecosystem change over time (primary, secondary, climax) -
Crown Canopy / trophic-pyramid structure (top vs. base) -
Brink Tipping points / ecosystem thresholds / resilience-or-collapse -
Cinder Carbon cycle — the same carbon moves round and round: air to plant to animal to air -
Lodge Keystone species — one species that holds a whole ecosystem together; remove it and the web unravels -
Mulch Decomposition — what dies doesn't leave; it is broken down and handed back to the living -
Rill Water cycle — the same water goes round forever: sea to sky to rain to stream to sea -
Sprawl Invasive species — a species carried somewhere new, where nothing holds it back
Ensemble stories — the cast together