2nd Nine Weeks

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Across
  1. 2. Not easy to pass through
  2. 4. You can use this to find the behavior of the ocean in the past
  3. 7. Wolly mamaoths had to suffer it
  4. 9. Fossil used for dating
  5. 10. Origin story of organism
  6. 12. can find underground
  7. 13. Creatures that relate to modern creature
  8. 16. Can be stone fossils
  9. 17. placing living things in categories
  10. 19. All living things
  11. 20. Relative order of past events
Down
  1. 1. change over time
  2. 3. Dino in ice
  3. 5. Non-Living things
  4. 6. A footprint is an example
  5. 8. Exact age of something
  6. 11. Bones that appear in different animals
  7. 14. Occur when atoms release energy
  8. 15. New distinct species occur
  9. 18. Recycle