Make Glowing Water
There are a couple of ways you get science projects to glow in the dark.
You can use glow-in-the-dark paint, which is phosphorescent and glows
anywhere from a few minutes to a few hours. Glowing paint or powder
tends not to be very soluble, so it is good for some projects and not
others. Tonic water glows very brightly when exposed to black light and
is great for edible projects. Fluorescent dye is another option for a
bright effect under a black light. You can extract non-toxic fluorescent
dye from a highlighter pen to make glowing water:
- Use a knife to (carefully) cut a highlighter pen in half. It's a pretty simple steak knife and cutting board procedure.
- Pull out the ink-soaked felt that is inside the pen.
- Soak the felt in a small quantity of water. I made a video of what to expect.
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