Hot water, cold water, with soap, without soap...what's the best way to kill the germs?! Children's Museum Houston Geek, John Bartlett, shows us using black light in this Geek Out.
Hot water, cold water, with soap, without soap...what's the best way to kill the germs?! Children's Museum Houston Geek, John Bartlett, shows us using black light in this Geek Out.
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