Geologic Time Brainpop Questions With 100% Correct Answers!!

1. Which of these numbers is closest to the age of the earth? - D. 4.6 billion years 2. What is the main purpose of the geologic time scale? - A. To organize the major eras of Earth's history 3. Place the following units in order, from smallest to largest. - A. Epoch, period, eon 4. Generally speaking, which rock layers are the oldest? - C. The ones furthest from the surface 5. What can you conclude from the fact that there have been just four eons in Earth's history? - D. There have been at least eight periods in earth's history 6. What event might mark the end of a period? - B. A major geologic change 7. What can you infer about the Maastrichtian Age from its name? - C. Rocks from this era were first studied near the city of Maastricht, Netherlands 8. How would the human time scale be different if we measured it in relative, instead of specific, time? Choose the best answer. - B. One week might be longer or shorter than the next 9. What does a stratigraphist study? - C. Rock layers 10. How does radiometric dating differ from the ages of the geologic time scale? - A. Radiometric dating involves absolute dates; the geologic time scale is measured with relative dates