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Updated Mar 28, 2026

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Understanding Plate Tectonics for KS3

🎀🧸Winna🎀🧸

@x_winna_x

Ever wondered why earthquakes shake the ground or volcanoes erupt... Show more

# Plate tectonics

Key point:

* The earth is made of diffrent layers: the core, mantle and crust.
* Plate tectonic theory shows that th

Earth's Structure and Plate Tectonics

Think of Earth like a massive onion with different layers, each with its own job. The inner core sits right at the centre, reaching scorching temperatures of 1600°C - that's hot enough to melt copper! Around it, the outer core contains liquid iron that's constantly moving about.

The mantle is the thick, meaty layer that makes up 84% of Earth's volume. It's filled with magma - semi-molten rock that acts like a slow-moving, super-hot soup. On top of all this sits the crust, the thin outer shell where we live.

Here's the brilliant bit: Earth's crust isn't one solid piece. It's cracked into massive chunks called tectonic plates, just like a cracked eggshell. These plates are constantly moving because the hot magma underneath keeps pushing and pulling them around.

Quick Fact: If Earth were the size of an egg, the crust would be as thin as the eggshell - that's how incredibly thin the layer we live on really is!

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Updated Mar 28, 2026

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1 page

Understanding Plate Tectonics for KS3

🎀🧸Winna🎀🧸

@x_winna_x

Ever wondered why earthquakes shake the ground or volcanoes erupt with molten rock? It's all down to our planet being like a giant, moving jigsaw puzzle where massive pieces of Earth's surface are constantly shifting and bumping into each other.

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Earth's Structure and Plate Tectonics

Quick Fact: If Earth were the size of an egg, the crust would be as thin as the eggshell - that's how incredibly thin the layer we live on really is!