Instructional Video9:24
SciShow

Distant Volcanoes Collapsed Dozens of Empires

12th - Higher Ed
Volcanoes, climate change, and Chinese history may seem like three phrases spit out of a random word generator, but the three things are more inherently linked than one may assume.
Instructional Video4:40
Mazz Media

Fragmentation: Asexual Reproduction in Plants

6th - 8th
In this live-action program viewers will learn that a common form of asexual reproduction, without requiring gametes, flowers, seeds or fruits, is fragmentation. As the word implies, fragments of the parent organism split or break off....