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5 Written questions

5 Matching questions

  1. 4.6 billion years old
  2. petrified fossil
  3. trilobite
  4. mass extinction
  5. law of superposition
  1. a older layers = lower; younger layers = upper
  2. b living thing dies and body / parts slowly replaced by minerals; example - logs, bones, shells
  3. c age of Earth based on age of oldest rocks found
  4. d huge #s of living things dying off at one time; usually a tragic event that changes environment / climate fairly quickly causes it
  5. e ocean animal now extinct; used to be very common arthropod; used as index fossil

5 Multiple choice questions

  1. actual creatures or parts of them from the past (bones, whole insects in amber, wooly mammoths in ice, etc.)
  2. specific age of rock or fossil; example - rock layer A is 25 myo; figured out by radioactive dating
  3. smallest amounts of geologic time; some time periods are broken up into several of these; examples: Pennsylvanian and Missippian
  4. comparison; younger vs. older; not exact
  5. gone forever; examples - dinosaurs, trilobites

5 True/False questions

  1. sedimentarycomparison; younger vs. older; not exact


  2. erassmaller amounts of geologic time; an eon is broken up into this; examples: Paleozoic, Mesozoic, Cenozoic


  3. birdsmost paleontologists think feathered dinosaurs evolved into these


  4. uniformitarianismlayer eroded away , then new layers formed above; missing part of fossil record


  5. one- celledeven smaller amounts of geologic time; an era is broken up into several of these; examples: Cambrian, Silurian, Devonian