Instructional Video4:51
SciShow

The Siberian Traps: A 250 Million Year Old Crime Scene

12th - Higher Ed
The event that killed the dinosaurs 66 million years ago might be the most famous mass extinction ever, but it's not the only one in Earth’s history, nor is it the worst... not by a long shot.
Instructional Video7:31
Wonderscape

The Five Major Mass Extinctions: Earth's History of Biodiversity Loss

K - 5th
Dive into the profound history of Earth's five major mass extinctions, from the Ordovician-Silurian to the Cretaceous-Paleogene events. Learn about the causes ranging from global cooling to asteroid impacts, which led to the drastic...
Instructional Video14:31
Professor Dave Explains

Volcanoes: Formation, Types, and Activity

12th - Higher Ed
It's time to talk about everyone's favorite geological feature, volcanoes! What are these things? Why do they erupt? What are the different types of volcanoes? How do they form? What happens to their lava? Let's learn about all of these...
Instructional Video6:51
Professor Dave Explains

History of the Earth Part 3: Phanerozoic Eon – Mesozoic Era

9th - Higher Ed
We are working our way through the Phanerozoic eon, and we got through the Paleozoic era. Next up, the Mesozoic era! In this era we see the rise and fall of the dinosaurs, those beloved beasts. How did this come to pass? What can we say...