Fossil Formation and What We Can Learn

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Across
  1. 2. fossil fuel formed by decayed swam plants
  2. 3. organisms in ___ water have a better chance to be fossilized
  3. 5. Do organisms on land or in water have a better chance to become fossilized?
  4. 8. Soft parts aren't often fossilized because they ___ or get eaten
  5. 9. the hardened sediment that forms around an organism
  6. 12. __ organism can become a fossil
  7. 13. any natural preserved evidence of life
  8. 15. petroleum and natural gas form from the remains of organisms in the ___
  9. 18. process where continents moved from 1 place to another
  10. 19. energy rich resources that form from the buried remains of organisms that were once alive
Down
  1. 1. Coal was once the most used fossil fuel but has been replaced by ___.
  2. 2. the 3D model that forms when sediment fills a mold and hardens
  3. 4. Because fossils of temperate plants and animals have been found in Antarctica, we know it was once much ___
  4. 6. knowing when an index fossil lived tells scientist the __ of the rock
  5. 7. A whole body can get fossilized if the organism gets __ in a bog or amber
  6. 10. sedimentary rock often forms in ____
  7. 11. The oldest layer is on the bottom and the youngest layer on top is called the law of ___
  8. 14. common fossils that lived during a short time and are found in many places
  9. 16. Earth is about 4.6 ___ years old
  10. 17. The ___ parts of an organism have a better chance to become fossilized