How Long Does Highlighter Glow Water Last

Practise yous have any predictions? With iii bottles of water, ane bottle filled with water mixed with highlighter dye, ane canteen filled with tonic water, and one bottle filled with regular tap h2o, which ones do yous think volition glow?

Borrow a blackness light, get your supplies together, and requite this elementary and fun science experiment a try! Nosotros have a supplies list, printable instructions as well every bit a demonstration video with experiment explanation beneath. Explore phosphors and have fun while learning!

JUMP TO Section: Instructions | Video Tutorial | How it Works

Supplies Needed

three Empty Bottles or Drinking Glasses
Highlighter
Tonic H2o
Water
Black light

Glowing Water Science Experiment Instructions

Step 1 – Set the h2o for the showtime canteen. To do then, pull the back off a highlighter and drop the ink into a cup of water. Set aside.

Step 2 – Prepare the water for the 2nd bottle. Do this past filling the 2nd bottle with tonic water.

Helpful Tip: If you buy tonic water that is already is a clear glass jar, you can just use that.

Step 3 – Prepare the water for the third canteen. Practise this by filling the third bottle with regular tap water.

Stride iv – Accept the water with the highlighter ink in information technology that you prepared in footstep ane. Sir the h2o to mix in the ink and and so pour it into the commencement bottle.

Step 5 – Position the black light behind the bottles.

Step 6 – Turn on the black calorie-free and observe the 3 bottles. Exercise any of them glow? Do you know why? Observe out the answer in the how does this experiment work department below.

Video Tutorial

Glowing Water Scientific discipline Experiment Pace by Stride Instructional Video

How Does the Science Experiment Work

The bottle with regular tap water does non glow when placed near a black low-cal.

The canteen with water and highlighter dye and the bottle with tonic h2o do glow when placed virtually a black light. This is considering highlighter dye and a chemical plant in tonic water called quinine contain something called phosphors. Phosphors are substances that emit light (or luminesce) when exposed to radiation like UV lite. When you smoothen a UV light on phosphors, the phosphors become "excited" and glow. Your teeth and fingernails also contain phosphors so they volition too glow in UV light!

I hope you enjoyed the experiment. Here are some printable instructions:

Materials

3 Empty Bottles or Drinking Glasses
Highlighter
Tonic Water
Water
Black calorie-free

Instructions

Ready the water for the offset canteen. To do and then, pull the back off a highlighter and drib the ink into a loving cup of h2o. Set bated
Ready the water for the second bottle. Practice this past filling the second bottle with tonic water. Tip: If you buy tonic water that is already is a clear glass jar, yous can just utilise that.
Set up the water for the third bottle. Do this past filling the tertiary canteen with regular tap water.
Have the water with the highlighter ink in it that you prepared in footstep one. Sir the water to mix in the ink and so pour it into the beginning bottle.
Position the black lite backside the bottles.
Plow on the black light and observe the 3 bottles. Practice whatever of them glow? Do yous know why?