Can highlighters
make water
glow in the dark?
Purpose
My purpose is to find out if a highlighter contains a glow-in-the dark substance.
Resources
Hypothesis
By: Kodi Bell
My hypothesis is that the highlighter will glow.
Highlighter
Cup
Highlighters glow under a black light because of the fluorescence in its ink.
Water
Black Light
Procedure
- Black light is only black because not a lot of the light of the lamp is in the visible spectrum.
- The materials glow because of fluorescence: absorbing the light and transmitting it at another frequency.
- Most is actually UV light.
- We cannot see UV light but we can see the retransmitted visible light causing the object to glow.
Research
Step-by-Step Directions:
Step 1: Pour water in cup.
Step 2: Remove cap from highlighter.
Step 3: Place highlighter in cup.
Step 4: Turn on the black lights.
Step 5: See if the highlighter can make the cup of water glow.
Conclusion
Results
The conclusion is that in black light the highlighter can make water glow.
The black light shined on the cup and you could see a bright yellow glow coming from the water around it.