On Wednesday I shared my list of resources for teaching and learning about Mount Everest. This afternoon, thanks to Larry Ferlazzo, I learned about another good resource for learning about Mount Everest.

Why is Mount Everest so Tall? is a new TED-Ed lesson in which students learn why the peak of Everest is so high, why other mountains are longer from base to summit, and how mountains in general are formed. Through the lesson students can also learn why the heights of mountains change and why Everest may not be the tallest mountain forever.

If you’re looking for tools for creating flipped lessons with this video or any others, take a look at this overview of flipped video creation tools.