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Education Concept Tracker

A prerequisite knowledge graph of 1590 learning concepts across 8subjects. Track what you've mastered and see exactly what you're ready to learn next — the topics whose prerequisites you've already met. Built on the Marble Open Skill Taxonomy.

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Rock layers and Earth's history

Science · Earth's Systems · representational

Interpret cross-section diagrams of the Earth's interior, geological strata, and rock cycle; read and label layers (crust, mantle, outer core, inner core); understand that deeper layers in sedimentary sequences are older

What mastery looks like

  • Label the four layers of the Earth on a cross-section diagram using the correct terms
  • Interpret a diagram of sedimentary rock layers and identify which layer was deposited first
  • Read a rock cycle diagram and trace the pathway of a rock from igneous to sedimentary to metamorphic

Check your understanding

If Rock layers and Earth's history sees a cut-away diagram of the Earth, can they point to and name the different layers — and if shown stacked rock layers, can they say which layer formed first?