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5 Written questions

5 Matching questions

  1. one- celled
  2. intrusion
  3. 4.6 billion years old
  4. epochs
  5. invertebrates
  1. a animals without backbone; earliest animals; examples - jellyfish, worms, clams, snails, insects
  2. b 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. c smallest amounts of geologic time; some time periods are broken up into several of these; examples: Pennsylvanian and Missippian
  4. d age of Earth based on age of oldest rocks found
  5. e first living things on earth; similar to bacteria

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. geology that happened in past, happens now, and will in future too; constant change in Earth; James Hutton idea
  3. huge #s of living things dying off at one time; usually a tragic event that changes environment / climate fairly quickly causes it
  4. older layers = lower; younger layers = upper
  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. erassmaller amounts of geologic time; an eon is broken up into this; examples: Paleozoic, Mesozoic, Cenozoic

          

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

          

  3. sedimentaryfossils usually found in this type of rock

          

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

          

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