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💧Understand the Water Cycle Beyond the Diagram

Follow a single water molecule through every stage of its loop — ocean, cloud, leaf, soil, aquifer, river — and finish able to explain in a paragraph why Earth never runs out of water.

Foundations14 drops~2-week path · 5–8 min/dayscience

Phase 1Following a Molecule Through the Hidden Loop

Trace a molecule from ocean to cloud to ground.

4 drops
  1. The glass of water you're drinking is older than the dinosaurs

    6 min

    The glass of water you're drinking is older than the dinosaurs

  2. The ocean is slowly boiling, just very, very quietly

    6 min

    The ocean is slowly boiling, just very, very quietly

  3. Clouds are not floating — they're falling slowly

    6 min

    Clouds are not floating — they're falling slowly

  4. Rain is what happens when a cloud loses the fight

    7 min

    Rain is what happens when a cloud loses the fight

Phase 2The Steps the Cartoon Diagram Skips

Label the hidden steps the cartoon diagram skips.

5 drops
  1. Trees are silent fountains pointing at the sky

    7 min

    Trees are silent fountains pointing at the sky

  2. Most rain never reaches the river

    7 min

    Most rain never reaches the river

  3. There's a slow-moving ocean under your feet

    7 min

    There's a slow-moving ocean under your feet

  4. Every river is a temporary address

    6 min

    Every river is a temporary address

  5. Draw the cycle with every arrow the textbook left out

    8 min

    Draw the cycle with every arrow the textbook left out

Phase 3Water, Weather, Carbon, and the Connections That Matter

Connect the cycle to weather, drought, and carbon.

4 drops
  1. A thunderstorm is the water cycle running on fast-forward

    7 min

    A thunderstorm is the water cycle running on fast-forward

  2. The drought in California started underground

    7 min

    The drought in California started underground

  3. Water and carbon are running the same route

    7 min

    Water and carbon are running the same route

  4. We've rerouted the cycle without rewriting it

    7 min

    We've rerouted the cycle without rewriting it

Phase 4Writing Earth's Recycling Story

Write the paragraph that explains Earth's recycling.

1 drop
  1. Write the paragraph that makes the cycle click

    20 min

    Write the paragraph that makes the cycle click

Frequently asked questions

What is transpiration and why is it left out of most water cycle diagrams?
This is covered in the “Understand the Water Cycle Beyond the Diagram” learning path. Start with daily 5-minute micro-lessons that build from fundamentals to hands-on application.
How does groundwater fit into the water cycle?
This is covered in the “Understand the Water Cycle Beyond the Diagram” learning path. Start with daily 5-minute micro-lessons that build from fundamentals to hands-on application.
Why does Earth never run out of fresh water?
This is covered in the “Understand the Water Cycle Beyond the Diagram” learning path. Start with daily 5-minute micro-lessons that build from fundamentals to hands-on application.
How is the water cycle connected to droughts and weather?
This is covered in the “Understand the Water Cycle Beyond the Diagram” learning path. Start with daily 5-minute micro-lessons that build from fundamentals to hands-on application.
What is the difference between infiltration and runoff?
This is covered in the “Understand the Water Cycle Beyond the Diagram” learning path. Start with daily 5-minute micro-lessons that build from fundamentals to hands-on application.