Layers of the Earth

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Across
  1. 4. A light-colored rock high in silica, found in continental crust.
  2. 5. An invisible shield around Earth that blocks solar radiation.
  3. 8. Earthquake vibrations that help reveal Earth’s inner structure.
  4. 9. A dark, iron-rich rock found in oceanic crust.
  5. 10. The outermost layer of Earth where humans live, made of solid rock.
  6. 11. A hot, solid center made of iron and nickel under high pressure.
  7. 14. Plates crashing together, creating mountains or trenches.
  8. 15. A surface opening where magma erupts from inside the Earth.
  9. 17. Rising and sinking rock movement that drives plate motion.
  10. 18. The deepest part of Earth, made of metal and split into two layers.
  11. 19. Giant moving slabs of crust and upper mantle.
  12. 20. The thick layer beneath the crust that flows slowly over time.
Down
  1. 1. Plates moving apart, forming new crust at ridges.
  2. 2. A soft part of the upper mantle where plates float and move.
  3. 3. A sudden ground shaking from plate movement or stress release.
  4. 6. Thicker part of the crust under continents, mostly granite.
  5. 7. Plates sliding past each other, often causing earthquakes.
  6. 12. Thinner, denser crust under oceans, mostly basalt.
  7. 13. A molten metal layer that helps generate Earth's magnetic field.
  8. 16. Process that creates Earth's magnetic field using outer core motion.