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Eighth Grade (Grade 8) Historical Geology Questions

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Grade 8 Historical Geology
Geological time periods are divided by                                                .
  1. the appearance and disappearance of life forms.
  2. an equal number of years.
  3. the amount of sediment.
  4. solar changes.
Grade 8 Historical Geology
Order the divisions of geological time from the longest to the shortest.
  1. epochs, periods, eras, eons
  2. eons, epochs, eras, periods
  3. periods, epochs, eras, eons
  4. eons, eras, periods, epochs
Grade 8 Historical Geology
Which of the following does not describe the second mass extinction?
  1. half of all animal and plant life died
  2. dinosaurs became extinct
  3. the primordial ooze occurred
  4. the Sun was blocked and much plant life died, resulting in many animals dying
Grade 8 Historical Geology
The image shown could best be used for which purpose?
Geologic Cross Section 2
  1. relative dating
  2. absolute dating
  3. radiometric dating
  4. paleomagnetic dating
Grade 8 Historical Geology
Grade 8 Historical Geology
When did geologic time begin?
  1. about 4.6 million years ago
  2. about 4.6 thousand years ago
  3. about 4.6 years ago
  4. about 4.6 billion years ago
Grade 8 Historical Geology
Which area of science studies Earth's history and structure?
  1. Astronomy
  2. Oceanography
  3. Meteorology
  4. Geology
Grade 8 Historical Geology
Gaps in rock sequences are called                  .
  1. superposition
  2. index fossils
  3. uniformitarianism
  4. unconformities
Grade 8 Historical Geology
Which area of Earth Science is the study of ancient organisms?
  1. astronomy
  2. meteorology
  3. paleontology
  4. oceanography
Grade 8 Historical Geology
Grade 8 Historical Geology
During the first billion years of Earth's history,                          .
  1. there was life everywhere
  2. trilobites evolved
  3. vertebrates evolved
  4. there was no life
Grade 8 Historical Geology
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