Earth History Crossword Puzzle

123456789101112131415
Across
  1. 2. Identified by protons & neutrons
  2. 3. Ability to survive
  3. 4. Physical traits
  4. 7. Outermost layer
  5. 9. Molten rock
  6. 10. Bending of rock layers
  7. 11. Survival trait
  8. 12. Largest classification category
  9. 13. Changed by heat & pressure
  10. 15. Formed from organism remains
Down
  1. 1. Plates make contact
  2. 5. Inherited from ancestors
  3. 6. Supercontinent
  4. 8. Nuclear
  5. 14. Cooled molten rock