Activity Spotlight – UV Bracelets

Did you know that light can cause the color to change on certain materials? Those materials are called photochromic (literally color changing). UV beads change color as a result of nanoscale shifts in the shape of the dye molecules.

Learn about this activity from NISENET.

WEBSITE: http://nisenet.org/catalog/programs/exploring_properties_-_uv_bracelets_nanodays_2013

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