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How to Make a Vinegar Trap to Catch Fruit Flies10 Tips for Getting Rid of Fruit FliesWhere Do Fruit Flies Come From?College Applications: A Month-by-Month Timeline for High Sch...Quiz - What's Your Leadership Style? [About Psychology]
By Anne Marie Helmenstine, Ph.D.
Petroleum jelly, such as Vaseline, glows bright blue under a black light. Anything you paint with the petroleum jelly will glow blue under ultraviolet light.
Anne Marie Helmenstine, Ph.D.
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