Unit 3 Earths Structure Part 1CW

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Across
  1. 3. The scientist that developed the theory of continental drift.
  2. 4. the study of the history of Earth's magnetic field.
  3. 7. Theory proposed by Alfred Wegner that Earths continents had once been joined as a single landmass.
  4. 8. happens when the flow of the outer core shifts, and the magnetic field switches direction.
  5. 10. the upper layer of the earth's mantle, below the lithosphere.
  6. 12. Rigid outer part of the earth, consisting of the crust and upper mantle.
  7. 13. Outermost and least dense of Earth's layers
Down
  1. 1. Layer of the Earth that produces a magnetic field, Liquid Iron
  2. 2. Divergent boundary in the middle of the Atlantic ocean where the main study of magnetic reversal was discovered.
  3. 5. Densest layer of Earth, Solid iron, extreme heat
  4. 6. The name of the supercontinent, coined by Alfred Wenger.
  5. 9. Thickest layer of Earth, and contains convection currents of magma.
  6. 11. theory that explains how new crust is formed.