science

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Across
  1. 3. Earth’s thickest layer made of hot rock that is less dense than the metallic core
  2. 6. Earth’s crust and the very top of the mantle together
  3. 8. Current, motion that transfers heat energy in a material
  4. 9. Core, ball of hot solid metals
  5. 10. Drift, the hypothesis that Earth’s continents were once joined and gradually drifted apart
  6. 11. energy transfer by the movement of a material
  7. 12. Core, layer of liquid metals that surrounds the inner core
Down
  1. 1. of Plate Tectonics, theory that lithosphere has huge plates that move over surface of the earth
  2. 2. Ridge, underwater mountain ranges
  3. 4. layer of hotter, softer rock in the upper mantle
  4. 5. Plate, one of large moving pieces which Earth’s lithosphere is broken
  5. 7. name of the super-continent when all were joined together
  6. 11. thin layer of cool rock that surrounds the earth