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5 Written questions

5 Matching questions

  1. trace fossil
  2. 4.6 billion years old
  3. body fossil
  4. mass extinction
  5. sedimentary
  1. a age of Earth based on age of oldest rocks found
  2. b fossils usually found in this type of rock
  3. c evidence left by living thing long ago; examples - tracks, tunnels, turds, nests, etc.
  4. d actual creatures or parts of them from the past (bones, whole insects in amber, wooly mammoths in ice, etc.)
  5. e huge #s of living things dying off at one time; usually a tragic event that changes environment / climate fairly quickly causes it

5 Multiple choice questions

  1. most paleontologists think feathered dinosaurs evolved into these
  2. magma squeezed up from below; cools slowly underground to form igneous rock with larger crystals such as granite; younger than layers it cuts through
  3. gone forever; examples - dinosaurs, trilobites
  4. living thing dies and body / parts slowly replaced by minerals; example - logs, bones, shells
  5. first living things on earth; similar to bacteria

5 True/False questions

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

          

  2. radioactive decayone element changes over time to another element; gives off energy; used to figure out how old rocks/fossils are

          

  3. relative agespecific age of rock or fossil; example - rock layer A is 25 myo; figured out by radioactive dating

          

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

          

  5. absolute agespecific age of rock or fossil; example - rock layer A is 25 myo; figured out by radioactive dating