Step Three Go into a dark room and turn on your black light. If the oobleck is too thick add more tonic water 1 tablespoon at a time. Step Two Add 1/2 cup of water and stir to combine. The rest is a basic vinegar and baking soda chemical reaction. Step One Pour 1 cup cornstarch into a bowl. The tonic water contains quinine which glows under black light and provides the glow in this eruption. fluorescent under ultraviolet black light. Tonic water and the dye from highlighter pens contain phosphors. The boys loved this simple experiment and insisted on setting it up to redo three times in a row! Photo about Top view into a highball glass of iced tonic water. The ultra violet (UV) light coming from your black light lamp excites things called phosphors. Now make sure everyone is ready and sprinkle in some baking soda! Make sure any overflow will not get near any electrical for the black light.įill the glass about 1/4 full with tonic water. Set up your space with the glass on the tray in front of the black light. To do this super fun and simple experiment, you will need: We set everything on towels as the kids took over conducting the experiment and doing the mixing, so things got a little wild and messy! But they had so much fun! This is a very messy experiment, so make sure you are doing it in an area that is easy to clean up. The other day we did this and created glow eruptions!ĭisclaimer: This post contains affiliate links Sometimes the most basic of experiments can be turned into something “wow” worthy with a simple ingredient switch.
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