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5 Written questions

5 Matching questions

  1. trilobite
  2. petrified fossil
  3. law of superposition
  4. unconformity
  5. time periods
  1. a older layers = lower; younger layers = upper
  2. b layer eroded away , then new layers formed above; missing part of fossil record
  3. c ocean animal now extinct; used to be very common arthropod; used as index fossil
  4. d living thing dies and body / parts slowly replaced by minerals; example - logs, bones, shells
  5. e even smaller amounts of geologic time; an era is broken up into several of these; examples: Cambrian, Silurian, Devonian

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. comparison; younger vs. older; not exact
  3. first living things on earth; similar to bacteria
  4. geology that happened in past, happens now, and will in future too; constant change in Earth; James Hutton idea
  5. one element changes over time to another element; gives off energy; used to figure out how old rocks/fossils are

5 True/False questions

  1. 4.6 billion years oldliving thing dies and body / parts slowly replaced by minerals; example - logs, bones, shells

          

  2. epochssmallest amounts of geologic time; some time periods are broken up into several of these; examples: Pennsylvanian and Missippian

          

  3. intrusionmagma squeezed up from below; cools slowly underground to form igneous rock with larger crystals such as granite; younger than layers it cuts through

          

  4. eraslongest amounts of geologic time

          

  5. absolute agecomparison; younger vs. older; not exact