Science

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Across
  1. 2. opposition
  2. 4. force where objects move away from one another
  3. 9. before written records
  4. 10. sudden, violent shaking of the ground
  5. 11. formal systematic research, inspection, or examination
  6. 14. the process where elements like water and wind breakdown rock and earth
Down
  1. 1. distinguishing features
  2. 3. heated to or past the boiling point
  3. 5. DNA strand coded with genes
  4. 6. liquefying or dissolving
  5. 7. the passing on of genetic traits
  6. 8. large thick ice masses that move slowly
  7. 10. physical or mental exertion
  8. 12. the physical appearance of features on the surface of the earth
  9. 13. remains of a prehistoric organism in rock