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Project title What makes phosphorescence last longer?Featured science projectScience project video
Difficulty Level Middle school
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An ultraviolet light source (as opposed to other forms of light sources) will be able to make the glow of phosphorescence material last longer. 

Instructions preview
*For this experiment, the independent variable is the type of lamp used. The dependent variable is the time expired before for the stickers stop glowing.The constants (control variables) are the legth of time of exposure to the lamps, the power/output ratings of the lamps and the distance of the lamps from the sticker. *This experiment must be performed in a dark room. *The 3 pieces of glow-in-the-dark stickers are kept covered in a dark room. First the ultraviolet lamp is placed 1 meter directly above the stickers. The lamp is switched on, the cover over the sticker removed and .....
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