I was planning events for Mad Science Camp with objects which fluoresce. I’ve never down a chemistry lab with chemiluminescence, thermochromic pigments, or photochromic pigments. I have UV or solar-active beads. I would like to make slime polymers and add pigments to test. It would be fun to test glow sticks to introduce reaction rates. I could bring in substances which fluoresce under a UV flashlight, such as tonic water. These activities coincide with Light Energy. When I teach electron configurations, I review the electromagnetic spectrum and a brief history of the development of Quantum Theory. Chemiluminescence dovetails well.
A student added photochromic pigment to sunscreen. The sunscreen changes color when it’s time to reapply. Look at this ChemMatters article about sun glasses. Here is an article explaining thermochromic paper or heat-sensitive paper. I need to read this article about special-effect pigments carefully before I organize the lab.
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