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Earth’s Moving Plates
Age 14 · Geography
Earth’s outer rocky shell is broken into large slabs that move slowly over time. Where these slabs meet, rocks can fold into mountains, melt into volcanoes, or crack and shake.
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In the picture
- Thin rocky crust: the outermost layer of rock.
- Glowing mantle: hot, slowly moving rock beneath the crust.
- Colliding plate edges: two crust slabs meeting and crumpling upward into mountains.
- Volcano at a plate edge: a cone where melted rock reaches the surface.
- Fault line: a crack in the crust where rocks shift and cause earthquakes.
Examples
- A mountain range rising where two plates collide.
- An earthquake shaking a city near a plate boundary.
Key takeaways
- Earth’s crust is broken into moving plates.
- Mountains, volcanoes and earthquakes often form at plate edges.
Quiz: Earth’s Moving Plates (Age 14)
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What is Earth’s crust broken into?
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Where do mountains, volcanoes and earthquakes often form?
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What happens at a fault line?
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