"Exploring Properties - UV Bracelets" is a hands-on activity in which visitors use ultraviolet light to change the color of beads that contain photochromic dye. They learn that the UV beads change color as a result of nanoscale shifts in the shape of the dye molecules.
Nano TopicsMaterials, tools, and applications
K-4: Properties of objects and materials
5-8: Properties and changes of properties in matter
9-12: Structure and properties of matter
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