PURPOSE: Demonstrate fluorescence in different materials.
DESCRIPTION: Colored chalk is doped with various fluorescent chemicals so that when illuminated by ultraviolet light it glows brightly. Write on the blackboard with different colors, then make them come alive with a black light.
SUGGESTIONS: Best in dark room.
REFERENCES: (PIRA unknown.)
EQUIPMENT: Fluorescent chalk and black light.
SETUP TIME: None.
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