Hardware Store Science – Secret Messages with Teflon Tape

It’s true that I find some of my best experiment inspiration in the hardware store. My team often likes to tell the story about spending five hours at Home Depot before a conference in Atlanta… don’t believe everything you hear. This Teflon Tape experiment is one of my favorites because young scientists get to use a pretty common household material to make their own secret messages. Check out the video below, then read the experiment for the whole story.

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