11. How old is the Earth?: Crash Course Geology #17 What do iron deposits, fossils, and radioactive meteorites have in common? They’re all keeping records of our geologic history, the unimaginably long period of time that our Earth 09/04 00:00 ♡
12. Let's Go on a Field Trip! Dwayne ventured out of the Crash Course studio to learn more about stratigraphy with @eons host Kallie Moore! We can see different features in this formation in Southwest Montana t 09/02 00:30 ♡
13. Earthquake Resistant Buildings Earthquakes can happen anywhere on Earth, at any time—and unfortunately, we have no way of predicting exactly when or where. But by studying and tracking seismic data, scientists c 08/26 03:00 ♡
14. The Mystery Behind Earth’s Missing Rocks: Crash Course Geology #16 How did over one billion years of history go missing? In this episode of Crash Course Geology, we’ll tour the Grand Canyon and discover how geologists read its rocky layers like ch 08/21 00:00 ♡
15. Is the Yellowstone volcano going to erupt again? 🌋 Yellowstone’s last supereruption was around 640,000 years ago, and geologists say there’s an “exceedingly low” chance that a supereruption would happen in the next few thousand yea 08/19 00:00 ♡
