How does disappearing ink work?

Our Extreme Scientist, Jesse, talks about the chemistry of disappearing inks. She has a little surprise for Chris near the end.
Imagination Station, Toledo's hands-on science center, is a vital non-profit organization that is an integral part of Toledo's economic, educational and social landscape. Imagination Station provides a critical layer of science enrichment by serving as an educational partner for teachers, schools and parents. It's with a thoughtful blend of exhibits, experiences, education and excitement that Imagination Station is inspiring future generations of scientists in Northwest Ohio. With more than 250 hands-on exhibits and demonstrations, Imagination Station delivers a multi-sensory experience that's as fun as it is educational.
Visit us at www.imagination...

[@salvatoresor9425]

can u give me the materials

[@haaey1197]

3:30 😏

[@KadeemLiburd]

2:44

[@fearlesswolfpup2684]

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[@mts2457]

I don't think he knows how to blow