National Geographic’s YouTube channel includes a fun playlist of short videos about interesting science facts. The playlist is called Today I Learned or TIL for short. In the playlist you will find videos that answer questions like “why is the ocean salty?” and “why do some birds eat dirt?”

The answer to “why do some birds eat dirt?” is provided in the video below. It’s a short explanation of why macaws seek salt and other minerals found in dirt.

Applications for Education
The videos in Today I Learned aren’t long enough to be full flipped lessons, but they could be useful as warm-up material to spark your students’ curiosities about a topic.