MinutePhysics
The "Mountain Or Valley?" Illusion
This video is about a multistable perceptual illusion, similar to the hollow face illusion, whereby maps or aerial or satellite photos look upside down/inside out, ie, concave (valley) parts look convex and convex (mountainous) parts...
Geography Now
Geography Now! Belarus
They speak Russian, but don't you dare say they are Russian! Belarus is its own nation, complete with a complex lingual, cultural, and political identity. A humorous and irreverent video unravels these threads with a geographical...
Geography Now
Geography Now! Argentina
Argentina may be named after the Latin word for silver, but there is precious little of the metal there. A video profile describes its otherwise rich history—and mineral deposits— through glib commentary and helpful maps. Learners...
Geography Now
Geography Now! Algeria
Only three percent of Algeria's land is arable, and it's not uncommon to see signs in three different languages: Berber, French, and Arabic. The complicated African nation's history and geography go back thousands of years, and it has...
Geography Now
Geography Now! Albania
Albania isn't a social butterfly ... it's a social pterodactyl. At least, that's according to a video geography of the Balkan country. While Albania was once isolated with few friends, the mountainous country has been on a mission...
Howard Hughes Medical Institute
Anole Lizards: An Example of Speciation
What happens to a species when members become separated by changes in their environment? Present young biologists with the ultimate example species—the anole lizard. A brief video describes the origins of the multitude of anole species...
TED-Ed
What’s so Great about the Great Lakes?
How many states touch the Great Lakes? How much water is in them? How many lakes are there? Watch a video that dives into the greatness of the Great Lakes, exploring the different habitats and efforts to protect them.
Crash Course Kids
Weathering and Erosion
How does water help shape Earth's landforms? This is the focus of a video that describes how mechanical weathering and chemical weathering help shape Earth's geologic features.
PBS
Pbs Nova: Extreme Cave Diving
Follow a team of scientists as they explore underwater caves, in the Bahamas, that formed during the last Ice Age. They are one of the least explored and most dangerous places on earth. [01:23:00] (9 February 2010)