Dino Die-Out

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Across
  1. 4. unable to maintain
  2. 6. impact a theory explaining dinosaur extinction
  3. 9. kill, destroy, or remove a large percentage or part of
  4. 11. element found only in space
  5. 12. to prove wrong
  6. 13. a dead body
  7. 14. a method to explain, predict, and understand phenomena
Down
  1. 1. confirm or give support
  2. 2. scientist who studies the history of life on Earth through the fossil record
  3. 3. to bring to an end
  4. 5. small vertebrates that need water, or a moist environment to survive
  5. 7. impact a meteor comet or asteroid colliding with earth
  6. 8. the variety of life on earth
  7. 10. destroy completely put an end to