Biology · Beginner · 4 steps

Photosynthesis: The Lab Inside a Leaf

Taught by Curie · Methodical & hands-on

Look inside a leaf like a chemist. Marie Curie walks you through the photosynthesis equation atom by atom, then runs an experiment: turn up the lamp and count the oxygen bubbles from a sprig of Elodea until the rate levels off.

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Free, no account needed. Opens right here; the same lesson runs in the app with narration in Curie's voice.

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What you will learn

  • The equation: 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂
  • How every atom is conserved, not created
  • How light intensity changes the oxygen production rate
  • Why the rate saturates at high light

Lesson outline

  1. The Leaf as a Living Laboratory
  2. The Stoichiometry of Photosynthesis
  3. Measuring Oxygen Production Rate
  4. Laboratory Knowledge Check

Each step has a short narration, something to drag or toggle, and the lesson ends with a quiz. You can go back to any step.

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