EcoSphere

Explore Earth as a living web of connected parts — and see how a change to one species ripples through the whole ecosystem.

Level 1

For grown-ups — progress report →A private, on-device snapshot mapped to the skill areas practiced. Export a CSV or print — nothing leaves this device.

Ecosystem Lab

Pull one thread in a real food chain — remove the sea otters, bring back the wolves — and watch the trophic cascade ripple up and down the levels. Energy flow, the ten-percent pyramid, and who-eats-whom, one chain at a time.

Trace the cascadePredict how one change ripples through the food chain.

Concepts — choose a kit

16 kits, each a short round of questions with hints when you need them. Your progress stays on this device.

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 ecology labs

Predict-and-observe labs and extra practice modes:

Restoration ScenarioPredict a conservation project, then watch life return. Food Web DetectiveAdd each energy-flow arrow from what you observed. Energy PyramidPredict how much energy survives each 10% step. Mixed practiceRevisit questions from the kits you’ve played. EcoSphere SprintA calm speed round on what you’ve mastered. Ecosphere Journey mapA path through every kit.

Play together

Go head-to-head with a friend — same device or an online room.

Ecosphere Duel (pass-and-play) 2–4 players take turns on one device, or open an online room by code.

Same idea, another world

Something you practice here shows up somewhere else too — that's real learning that travels.

Removing the otters ripples up and down the food web — a cascade is a feedback loop running through a connected system.The shared idea: feedback loops — a trophic cascade is a change that ripples through a connected system, the same loop structure that runs any systemTry NexusForge →
EcoSphere mascot

Meet the cast — the characters who teach this

Each one stands for an idea you’ll practice. Tap a character to read their illustrated story and hear their audio drama.

Ensemble stories — the cast together

Explore all the stories →

📚 Books for EcoSphere

Read the story, print a workbook, or color the cast — free PDFs to read offline or print at home.

Browse all books →

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