Chp. 11 Fossils Crossword

12345678910111213141516171819202122
Across
  1. 1. Petroleum and natural gas came from these fossilized marine plants
  2. 3. (2 words, no space) In 2005 what was discovered in a fossilized T-Rex that scientists didn't think was possible
  3. 5. Fibrous plant matter build up and compressed
  4. 7. (2 words, no space) Also called a missing link
  5. 10. A species is headed for this when more animals or plants dies than are born
  6. 11. This type of fossil seems to appear reliably in their proper sequence across the world
  7. 13. An organic sedimentary rock that formed from fossilized plants
  8. 14. Creationists believe this event is when most fossils were formed
  9. 16. Most evolutionists believe there were this many extinction events
  10. 18. A mineralized form of tree sap
  11. 19. (2 words, no space) Examples are coal, oil, natural gas
  12. 20. 95% of all fossils are _____ organisms
  13. 22. (2 words, no space) examples are bones, shells and insects trapped in amber
Down
  1. 2. The study of fossils
  2. 4. Many dead things don't fossilize because they are eaten by these
  3. 5. The process of replacement where dissolved minerals replace the actual material
  4. 6. A type of flat print found on rocks
  5. 8. Fossils usually less than a millimeter in size
  6. 9. Commonly called oil
  7. 12. The type of rock most fossils are found in
  8. 15. (2 words, no space) a dead organism trapped in sediment decayed away and left an open space
  9. 16. Any remains or trace of a formerly living thing preserved by natural processes
  10. 17. Many scientists believe fossils can tell us a lot about _____ in the past
  11. 21. Most biologists have this worldview