Science

8th

grade

Image

8.E.2 Earth History Review

39
plays

61 questions

Show Answers
See Preview
  • 1. Multiple Choice
    1 minute
    1 pt
    Which best describes a fossil that helps determine the relative age of a rock layer?
    trace fossil
    index fossil
    radioactive fossil
    unconformity fossil
  • 2. Multiple Choice
    30 seconds
    1 pt
    By which method have scientists determined that the Earth is about 4.5 billion years old?
    plate tectonics
    relative dating
    radioactive dating
    law of superposition
  • 3. Multiple Choice
    30 seconds
    1 pt
    Which characteristic of carbon-14 dating helps scientists determine the approximate time a species became extinct?
    Carbon-14 is not present in more recent fossils
    Carbon-14 increases at a constant rate over time
    Carbon-14 decreases at a constant rate over time
    Carbon-14 can only be found in fossils of a certain period
  • Answer choices
    Tags
    Answer choices
    Tags

    Explore all questions with a free account

    Already have an account?