Volcanoes are one of the most-searched science topics for students, and seeing inside one makes it click. This prompt shows a realistic volcano sliced open like a glass model, so viewers watch magma rise and pressure build stage by stage, ready for a narrated explainer.
Why it is trending
Educational explainer visuals are one of the fastest-growing AI uses for faceless YouTube channels and teachers. Cutaway 'inside the Earth' visuals hold attention far better than diagrams.
The master prompt
Copy it as it is, or change the parts in [BRACKETS] to make it yours.
Create a clear, cinematic, photorealistic educational explainer, 28 seconds, 16:9, showing how a volcano erupts, using a cutaway view as if the volcano were sliced in half and the cut side were made of clear glass. Scientific, beautiful and easy to follow, with no text on screen (narration will be added). THE VOLCANO: a realistic stratovolcano with layered rock (alternating ash and lava layers visible in the cutaway), a central vent running up to the crater, a large glowing magma chamber deep below, smaller side vents, and green forested slopes with a small village far away at the base. SETTING: a wide landscape at dusk with a dark blue sky so the glowing magma stands out; the cutaway face is perfectly clean, like a glass museum model, showing the inside clearly. CINEMATOGRAPHY: slow, smooth camera moves; a steady side-on view for the cutaway; 35mm lens; warm orange-red glow from the magma against a cool blue sky; crisp detail in the rock layers; a gentle push-in at key moments; 24 fps. [00:00-00:04] THE VOLCANO — Wide shot: the calm volcano at dusk, a thin wisp of steam rising from the crater; the camera moves to the side to reveal the clean cutaway. [00:04-00:08] THE MAGMA CHAMBER — Push-in to the deep magma chamber: glowing orange molten rock slowly swirling, small gas bubbles forming inside it. [00:08-00:12] RISING MAGMA — Magma pushes upward through the central vent like a slow rising column; the rock layers around it glow faintly with heat. [00:12-00:16] PRESSURE BUILDS — The gas bubbles in the magma grow larger as it rises; small cracks appear in the rock near the top; the ground on the slopes bulges slightly; small earthquake tremors shake loose rocks. [00:16-00:20] THE ERUPTION BEGINS — The pressure releases: a bright burst of lava, ash and gas shoots out of the crater, while a side vent also opens and glows. [00:20-00:24] LAVA AND ASH — Wide view: a dark ash column rises high into the sky with flashes of volcanic lightning; lava flows slowly down one slope, far from the village. [00:24-00:28] THE PAYOFF — The camera pulls back to show the whole cutaway and the eruption together: chamber, vent, crater and ash cloud in one clear picture, like a perfect textbook diagram come to life. SOUND: a deep low rumble growing louder, bubbling magma, cracking rock, a powerful roar at the eruption, distant thunder from volcanic lightning, and an inquisitive documentary music bed with room for narration. RULES: scientifically sensible (magma chamber, vent, crater, gas pressure), no people in danger, no text or labels on screen, no logos.
Short version (for apps with a character limit)
Cinematic photoreal science explainer, 28 s, 16:9, no on-screen text: a stratovolcano at dusk shown sliced in half like a clean glass museum model. The camera pushes into the glowing magma chamber, magma rises up the central vent, gas bubbles grow and pressure cracks the rock and bulges the slopes, then the eruption bursts from the crater and a side vent with ash, gas and volcanic lightning as lava flows down one slope away from a distant village. It ends on a wide view of the whole cutaway and eruption. Orange glow vs blue sky, rumble and roar, documentary music.
Shot-by-shot storyboard
- 00:00-00:04
THE VOLCANO
Wide shot: the calm volcano at dusk, a thin wisp of steam rising from the crater; the camera moves to the side to reveal the clean cutaway.
- 00:04-00:08
THE MAGMA CHAMBER
Push-in to the deep magma chamber: glowing orange molten rock slowly swirling, small gas bubbles forming inside it.
- 00:08-00:12
RISING MAGMA
Magma pushes upward through the central vent like a slow rising column; the rock layers around it glow faintly with heat.
- 00:12-00:16
PRESSURE BUILDS
The gas bubbles in the magma grow larger as it rises; small cracks appear in the rock near the top; the ground on the slopes bulges slightly; small earthquake tremors shake loose rocks.
- 00:16-00:20
THE ERUPTION BEGINS
The pressure releases: a bright burst of lava, ash and gas shoots out of the crater, while a side vent also opens and glows.
- 00:20-00:24
LAVA AND ASH
Wide view: a dark ash column rises high into the sky with flashes of volcanic lightning; lava flows slowly down one slope, far from the village.
- 00:24-00:28
THE PAYOFF
The camera pulls back to show the whole cutaway and the eruption together: chamber, vent, crater and ash cloud in one clear picture, like a perfect textbook diagram come to life.
Sound and music
Low rumble, bubbling magma, cracking rock, eruption roar, distant thunder, documentary music bed.
What to avoid (negative prompt)
text, labels, logos, people in danger, cartoon, unrealistic geology, horror
Remix it: ready-made variations
How a tsunami forms
Cinematic explainer with an underwater cutaway: two tectonic plates slip on the sea floor, the water column lifts, a long low wave races across the ocean, then grows tall as the sea floor rises near the coast, and the sea pulls back before it arrives. Photoreal, no text, no people in danger.
Inside a thunderstorm
Cinematic explainer: a cutaway of a giant storm cloud showing warm air rising, ice crystals and water droplets colliding, electric charges separating, and lightning striking, with rain and hail falling. Photoreal, no text or labels.
How a seed becomes a plant
Macro explainer with a glass cutaway of the soil: a seed absorbs water, its coat splits, a root grows down, the shoot pushes up and unfolds leaves toward the sun. Photoreal time-lapse, no text.
Tips for each AI model
| Model | What to do |
|---|---|
| Veo 3.1 | Split into three clips (chamber, rising and pressure, eruption) and keep 'clean glass-like cutaway, side view' in each prompt. |
| Sora 2 | Sora is good at scientific visuals; describe the cause and effect in order (bubbles grow, pressure builds, eruption). |
| Runway Gen-4 | Start from a still of the cutaway volcano so the inner layers stay identical across clips. |
How to make it, step by step
- Create the cutaway still. Generate the half-sliced volcano with visible chamber and vent.
- Generate each stage. Chamber, rising magma, pressure and eruption as separate clips.
- Write the narration. One simple sentence per stage, checked against a science textbook.
- Add labels in your editor. Add clean text labels (magma chamber, vent, crater) yourself.
Posting kit
A caption and hashtags you can use when you share your version.
What's actually happening inside a volcano. 🌋🔍 #science #volcano #education #explainer #geography #AIvideo #learning #teachersofinstagram #STEM #Veo3 #reels
Questions
Why no labels in the video?
AI often writes broken text. Add clean labels and arrows in your editor so they are correct and readable.
Is the science accurate?
The prompt follows the basic, widely taught process (magma chamber, rising magma, gas pressure, eruption). Check your narration against a trusted textbook.
Can teachers use this in class?
Yes. It works well as a 30-second hook before a lesson. Add your own narration for your students' level.
