Black Light Jell-o
“So why does the Jello glow? Quinine (an ingredient in tonic water) is a fluorescent substance. These substances absorb ultraviolet light and then re-emit it. The light emitted has a longer wavelength than the one absorbed which makes the light visible and causes quinine to glow. When you substitute tonic water for regular tap water when making the Jello, it adds the quinine which adds the glow. It is better to use light-colored Jello for maximum glow.”
You will need the following:
- *Jello (light-colored Jello such as Lemon or Lime will work best for this project)
- *16oz of tonic water
- *Liquid measuring cup
- *Small pot for boiling water
- *Mixing bowl
- *Mixing spoon
- *Small Table Lamp with fluorescent blacklight (The blacklight must be fluorescent and not simply a colored bulb. It can be purchased at most Wal-Mart locations for around $4.00)
STEP 2: MEASURE OUT TONIC WATER
- Measure out 8oz (1 cup) of tonic water in a liquid measuring cup.
STEP 3: POUR TONIC WATER INTO POT
- Pour tonic water into pot.
STEP 4: TURN STOVE BURNER ON HIGH
- Put pot on burner and turn on high.
STEP 5: POUR JELLO PACKET INTO MIXING BOWL
- While water is boiling, pour Jello packet into mixing bowl.
STEP 6: POUR BOILING WATER INTO MIXING BOWL
- Once water has boiled, pour the boiling tonic water into mixing bowl.
STEP 7: STIR UNTIL DISSOLVED
- Stir together Jello and boiling tonic water, making sure that the Jello powder fully dissolves.
STEP 8: ADD COLD WATER
- Add one cup of cold tap water to the mixing bowl.
- Alternate method: If you would like your Jello to glow more brightly, add one cup of cold tonic water instead of tap water. However, doing this will make the Jello taste more bitter than normal.
STEP 9: CHILL IN FRIDGE
- Place the mixing bowl in the fridge and chill for four hours.
STEP 10: REMOVE AND TEST WITH BLACKLIGHT
Source: Black Light Jello