Why Autumn Leaves Change Color
A two-minute illustrated science explainer that turns leaf chemistry into a visual cause-and-effect story.
Field notes / why it works
At 0:10.6, a familiar account of autumn color becomes a deeper causal question. The same illustrated worlds evolve through 24 internal graphic changes, making nutrients and chemical hazards visible without constant cuts. The 0:56 replay peak falls in the energetic-oxygen diagram, and the 1:45–1:59 conclusion reconnects the colors to nutrient recovery.
Plate 01 / The format in one breath
A familiar visible change opens the film; the narrator gives the usual explanation, then points out the deeper “why” it misses at 0:10–0:14. A single illustrated world turns invisible mechanisms into characters, materials, arrows, and a payoff that returns to the opening image.
Why it works
- The correction arrives at 0:10.6 after the familiar explanation, opening a clear causal question.
- Visuals keep translating the narration: a leaf inset at 0:02, pigment chemistry at 0:05–0:07, nutrient tokens at 0:26–0:31, and a chlorophyll factory at 0:42–1:13.
- The 0:56 replay peak sits inside the dangerous energy sequence; the payoff at 1:45–1:59 ties the pretty color back to nutrient recovery.
Plate 02 / Format card
| Reference | |
|---|---|
| Platform · aspect · length | YouTube · 640×360, 16:9 · 121 s · 24 fps |
| Pace | 11 shots, 10 measured cuts · 5.0–6.9 possible cuts/min · 24 internal steps · 16.9 picture changes/min · mean shot 11.0 s, median 9.47 s |
| Script | 363 spoken words · 188 wpm overall, 206 while speaking · 15 sentences averaging 24.2 words · no spoken question |
| Voice | Medium to low register, brisk and animated explanatory narrator |
| On screen | Nearly all hand-drawn 2D diagrams and character graphics; brief live tree footage around 1:43 |
| Captions | No speech captions; only diagram labels, chemical labels, a brief watch card and closing credits |
| Sound | Continuous quiet tonal bed, measured about 10.8 dB below speech; cut accents suggested by audio measurements (inferred) |
| Structure | Familiar explanation → missing cause → nutrient stakes → energy hazard → chlorophyll response → pigment outcomes → return to tree benefit |
Pro / 13 plates + recipe
The first plates are open. The full dissection is Pro.
Get the timed shots, type and sound specs, and the runnable recipe.
Open the full blueprint- Plate 03 / The hook, frame by frame (first 3 seconds)Pro
- Plate 04 / Structure (beat sheet)Pro
- Plate 05 / Shot grammarPro
- Plate 06 / Visual style guidePro
- Plate 07 / Voice and deliveryPro
- Plate 08 / Sound designPro
- Plate 09 / PackagingPro
- Plate 10 / Script templatePro
- Plate 11 / Production planPro
- Plate 12 / PromptsPro
- Plate 13 / Edit recipePro
- Plate 14 / QA checklistPro
- Plate 15 / Make it yoursPro
- Recipe / runnable promptPro