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Ari Raider's Training Materials · Quake Escape · Training Center 5 of 6
Earth's Layers
In the Iron Deep, the spare roof supports are stored by layer — and pulling the right ones means knowing which layers of Earth are rock and which are iron.
What you're training for
In the Iron Deep, half the iron ribs are stripped and the rest are groaning. The spares slot home for whoever can sort Earth's layers by what they're made of. Train here first; prove it in the simulation.
The science
- Crust: the thin rocky outside we live on — proportionally thinner than an apple's skin.
- Mantle: hot rock that creeps and flows over millions of years — most of Earth's volume.
- Outer core: liquid iron and nickel — its churning is what makes Earth's magnetic field.
- Inner core: a solid metal ball, squeezed solid by pressure even though it's roughly as hot as the Sun's surface.
Teach it today — one ball of playdough
The sliceable planet. Build Earth in four colors of playdough — a metal marble for the inner core, a soft wrap of "liquid" outer core, a thick mantle, a paper-thin crust — then slice it in half. Label the cut face, and ask the two big questions: which layers are rock, which are metal, and which one makes the compass work?
Trained and ready? Prove it at Stop 5 — the Iron Deep. Free, no logins, progress saved on the device.
Enter the Realm at Stop 5Resources in this training center
Worksheets, reading passages, flashcards and printables for this lesson are being added — new resources land here first. Get one email a month when they do, or browse the whole free library.
The hands-on half: the Quake Escape Adventure Kit puts six real specimens — hematite, the iron mineral, included — plus six Digs, six Gemlings and the Realm map in your students' hands. $19.99, or $15 a student for classrooms.
More Quake Escape training
Plate Boundaries · How Earthquakes Happen · Earthquake Vocabulary · Seismic Waves · Earth's Layers · Earthquake Safety · Enter the Adventure →