For my KIC presentation I am working with Nicole Wilder. My partner and I are doing UV beads. UV Beads are beads that detect UV rays by changing different colors.
We chose this topic because in the beginning of the year we got UV beads and wanted to do an experiment with them.
The question that we are trying to answer is: What happens when you put UV beads in 2 separate cups, 1 cup cold water (60 degrees F) and the other cup hot water (109.4 degrees f) and then put them in the shade? We thought of this idea because we already knew what happened when you put UV beads in the sun, but not in hot and cold water and the shade.
UV-sensitive beads contain a pigment that changes color when exposed to ultraviolet light from the Sun or other UV source. The pony beads are not, however, affected by visible light and so will remain white indoors, or when shielded from UV light.
To answer my question first, I put a couple of UV beads in 1 cup of hot water (109.4 degrees F) and UV beads in a cup of cold water (60 degrees F). Next I went outside to the shade with the 2 cups. Last I sat the UV beads in the sun to see how fast the UV beads change from the shade to the sun.
I have discovered that the hot water of 109.4 degrees F, with UV beads stared light colored in the sun and shade. I also discovered that the UV beads in the water of 60 degrees F, changed dark colors.
You might want to try putting UV beads in vinegar and putting them in the shade.