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Environmental Science: Our Changing Planet course icon

Environmental Science: Our Changing Planet

Like Duolingo, but for Environmental Science: Our Changing Planet. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.

For the part of you with thirty open tabs that never became anything.

43 bite-size levelsAbout 5 minutes each

Free forever · No credit card · iPhone & Android

Eco the Earthworm
Environmental Science: Our Changing Planet
with Eco the Earthworm
43
Levels
5
Sections
5
Min/day
What you'll learn

Key ideas in Environmental Science: Our Changing Planet

  • Energy is lost as heat at every step and cannot be reused
  • Matter like water and minerals stays in the system by changing form
  • The sun is the only reason ecosystems don't run out of energy
  • Distinguishing between the one-way path of energy and the circular path of matter
  • Only about 10% of energy is passed to the next level up
  • Most energy is used for the animal's own survival or lost as heat
  • Higher levels require a massive base of food to survive
  • Applying the 10% rule to explain why top predators are rare
  • Producers convert sunlight into chemical energy
  • One-way path of energy vs circular matter
  • Producers as the entry point for all energy
  • Decomposers break down organic waste
  • The 10% rule and top predators
  • Decomposers unlock nutrients
  • Producers and Decomposers roles
  • Food webs have multiple overlapping paths for energy
Why not just Google it

You've tried the other tabs

Wikipedia

Thirty open tabs. Four facts you actually kept.

YouTube

You watched. You nodded. By Sunday it was gone.

ChatGPT

One answer, then back to scrolling.

Online courses

Eight weeks. You meant to finish. You didn't.

Tomo gives Environmental Science: Our Changing Planet the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.

Try a question

Here's what playing it feels like

A real question from this course. Take your best guess.

Where the Energy Goes

What happens to the physical matter, such as carbon and nitrogen, in an ecosystem?

Get it right to open this lesson and 42 more in the app.

Course map

Where Environmental Science: Our Changing Planet takes you

Explore how Earth's natural systems function and how human activity reshapes our world. From biodiversity to renewable energy, learn to analyze the complex interactions that sustain life.

  1. 1

    The Living World

    • Ecosystems and Energy Flow
    • Biodiversity and Resilience
    • Population Dynamics
  2. 2

    Land and Water Use

    • Feeding the World
    • Mining and Urbanization
  3. 3

    Pollution and Waste

    • Atmospheric Pollution
    • Aquatic and Solid Waste
    • Human Health and Toxicology
  4. 4

    Energy and Climate

    • Fossil Fuels and Nuclear Power
    • Renewable Energy Solutions
    • Global Climate Change
  5. 5

    Earth Systems and Cycles

    • The Moving Earth and Soil
    • Global Nutrient Cycles
    • Atmosphere and Oceans

5 sections · 14 units · 43 levels. Built to play, not to enroll.

How it's taught

You pick the voice

This course
The Professor

Environmental Science: Our Changing Planet is taught in the The Professor style: clear, structured, thorough. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.

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