Earth’s Age - How We Know Earth is 4.55 Billion Years Old

Earth’s Age - How We Know Earth is 4.55 Billion Years Old

GEO GIRL via YouTube Direct link

Earth History Confirms Earth’s Age

11 of 12

11 of 12

Earth History Confirms Earth’s Age

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Earth’s Age - How We Know Earth is 4.55 Billion Years Old

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  1. 1 Video Outline
  2. 2 What is Absolute Dating?
  3. 3 What is a Radioactive Isotope?
  4. 4 How we use Half Lives to Date Rocks
  5. 5 ? How the Geologic Timescale was made
  6. 6 ? Early Estimates of Earth’s Age
  7. 7 ? After Radioactive Decay Discovery
  8. 8 Oldest Rocks on Earth
  9. 9 How we Know Earth is 4.5 Ga
  10. 10 How the Universe was Dated
  11. 11 Earth History Confirms Earth’s Age
  12. 12 Related Videos & References

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