Let there be light!

Chemiluminescence Demo Video

Read on to learn about what’s happening in the video above:

Our scientist pours two solutions, labeled Solution A and Solution B, into two separate beakers (these solutions are respectively a Luminol mixture and Hydrogen Peroxide). [NOTE: Luminol is a “versatile” chemical that happens to be very good at demonstrating the turning of chemical potential energy into radiant, or light, energy.] He empties the two beakers into the tube apparatus, turns the lights off, then the magic happens as the solutions combine to make a glowing liquid! THIS is chemical potential energy turned radiant energy.

Some glowing “stuff” gets its light by way of a reaction called chemiluminescence. Chemiluminescent reactions are chemical reactions that yield light without producing much heat, which we think is pretty amazing. What else undergoes chemiluminescent reactions? To list a couple of common occurrences: fireflies and lightsticks.

Firefly

Firefly. Photo courtesy of nativeplantwildlifegarden.com

Why are we particularly excited about glowing stuff? Because Pajama Jam is almost upon us (tomorrow night), and there’s going to be a ton of glowing stuff there – glow-in-the-dark bowling, glow-in-the-dark ring toss, glow-in-the-dark bead necklaces, and more! AND now you know why these things can glow without burning us – they are undergoing chemical reactions which yield light with the production of very little heat…unlike, say, the light produced by a conventional lightbulb.

Tickets for Pajama Jam are available online here. We hope to see you there!

 

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