🔬 Science · Volcanoes & Earthquakes

Earth's Layers

Know that Earth has layers — a thin outer crust, a thick hot mantle, and a core at the centre — and that the inside of the Earth is extremely hot

Typical age: 7–9 years

“If your child cracks open a hard-boiled egg, can they compare it to Earth and name the three layers — crust on the outside, mantle in the middle, and core at the centre?”

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Needs first

What Is a VolcanoREQUIRED
Understanding layers requires knowing what a volcano is (motivation for internal structure)
Earth Is Made of RockREQUIRED
Earth's layers builds on knowing Earth is made of rock

Unlocks next

Types of Rock
Rock types benefit from knowing Earth has hot interior (explains melting for igneous)
Inside a VolcanoREQUIRED
Magma chamber concept requires knowing Earth has hot interior layers
Tectonic PlatesREQUIRED
Tectonic plates are pieces of the crust (requires knowing Earth has layers)
The Rock Cycle
Rock cycle benefits from knowing Earth's internal heat drives melting