Layers of the Earth

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Across
  1. 4. innermost layer of the Earth (2 words)
  2. 5. based on physical properties and behavior
  3. 7. Key
  4. 9. compositional layer made of silicate rocks
  5. 10. Waves
  6. 12. metal layer responsible for Earth's magnetic field (2 words)
Down
  1. 1. used by scientists to study Earth's interior (2 words)
  2. 2. outer layer comprising the crust and upper mantle
  3. 3. outermost layer where life exists
  4. 6. that flows slowly, enabling plate tectonics
  5. 8. layer beneath the lithosphere allowing tectonic movement
  6. 11. Core
  7. 13. Core