Chemical Mystery #10: Out of the Blue!

the demo in action

It's almost time for the Fouth of July here in the United States of America. In honor of my country, I'd like to share the following chemical mystery, which involves the colors red, white, and blue: just like the American flag! Check out the video below, and see if you can't solve the mystery of the colors appearing "out of the blue"! If you think you know how this trick works, be sure to share your ideas in the comments!

Check out the Solution to Chemical Mystery #10.