Disappearing Ink Pen Prank

The classic Disappearing Ink prank in a pen! Squirt your shirt or a friend s clothes to make a blue ink stain. In about 2-3 minutes the blue ink will fade away. You can even write words or draw pictures on cloth. Say a magic word and the blue ink fades away. Disappearing Ink is also a simple chemistry demonstration of thymolphthalein and carbon dioxide (air).

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