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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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Tectonic Plates

Science · Volcanoes & Earthquakes · conceptual

Understand that Earth's crust is broken into large pieces called tectonic plates that float on hotter, softer rock beneath and move very slowly — a few centimetres per year

What mastery looks like

  • Describe Earth's crust as broken into large plates
  • Explain that the plates float on hotter, partially melted rock underneath
  • State that plates move very slowly, typically a few centimetres per year

Check your understanding

If you showed Tectonic Plates a map of the tectonic plates, could they explain that Earth's surface is cracked into huge pieces that move very slowly — about as fast as their fingernails grow?