And remember, while black lights are fun, they are producing very large amounts of UV rays. While we can't see the UV rays, they can hurt our eyes, so don't stare directly into a UV light.
Mr. O’s “O Wow Moments” help you to become an scientist at home with hands-on, minds-on experiments and demos! Watch Mr. O every Saturday morning during the 7 a.m. news on Houston's KPRC Local 2 to see a new science demo you can try at home. Share your experiments with us on facebook and Instragram!