I have been fortunate to see the Northern Lights a few times. It is truly one of the coolest natural things I’ve seen. So what makes the Northern Lights appear? Each of the following videos provide clear explanations.

The Aurora Borealis from Per Byhring on Vimeo.

Each of the videos could provide a good basis for a flipped lesson. The tools on this chart are good for building video-based quizzes.