Mon Prof Augmenté
Earth’s Magnetic Core
Age 12 · Geography
Earth has a hot metal core with a solid center and a swirling liquid layer around it. This moving metal gives Earth a magnetic field that turns a compass needle toward the north.
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Every lesson is open to everyone for 7 days after it is published. This one came out on September 12, 2026: its text stays readable here, and its picture opens with a subscription.
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In the picture
- Glowing solid inner core at the center.
- Swirling liquid metal layer around the inner core.
- Tilted bar magnet inside the globe.
- Compass needle on the surface.
Examples
- A hiking compass pointing north.
- A phone map arrow showing direction.
Key takeaways
- Earth’s core is mostly iron.
- A compass needle lines up with Earth’s magnetic field.
Quiz: Earth’s Magnetic Core (Age 12)
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Why does Earth act like a huge magnet?
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What does Earth’s magnetic field make a compass needle do?
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Which part of Earth is most responsible for making the magnetic field?
The answers, each with its explanation, are in the app. This lesson has left the free week, so its quiz is part of the subscription.
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