Chemical Mystery #18: Peek A Boo Blue!

Blue Powerade turning green, and then yellow.

Now that August is here, school is just around the corner. Therefore, I thought I'd share a new chemical mystery to get us all back in the spirit of teaching and learning. Can you use chemical principles to describe what happens in the experiment seen in the video below?

Video: Peek-A-Boo Blue, Tommy Technetium YouTube Channel, Aug 8, 2021


Let me know in the comments if you have any ideas for how this experiment works. I'll share the solution in a few days.  

Editor's Note: See the



General Safety

For Laboratory Work: Please refer to the ACS .  

For Demonstrations: Please refer to the ACS Division of Chemical Education .

Other Safety resources

: Recognize hazards; Assess the risks of hazards; Minimize the risks of hazards; Prepare for emergencies