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The Cool Blue Light of Luminol
81
The Cool
Blue Light of Luminol
Problem / Purpose
Problem/Purpose
Date Forensic Science. Period One problem with luminol is that the chemical reaction can destroy other evidence in the crime scene. For this reason, investigators only use luminol after exploring a lot of other options.
Back Ground Research (introduction)
Back Ground Research (introduction)
There's a lot of unbelievable technology in cop shows and movies -- computers that can zoom in
and "enhance" a tiny section of a video frame; machines that can isolate a particular background
voice from a muffled recording in a matter of seconds. Most of this stuff is pure fiction,
fabricated by the writers to move the plot along. But one of the most outlandish TV cop tools, a
special chemical that reveals invisible blood traces, is entirely real.
In this article, we'll find out how this strange compound, commonly known as luminol, reveals
hidden crime scenes. As we'll see, this chemical is just as cool as it sounds, but it does have
drawbacks and limitations not usually addressed on TV.
Hypothesis
Hypothesis
if you raise the temperature of the water then the light produced from the luminol will glow brighter becaues heat causes the molecules to move faster.
Text
Pictures
Materials
1. Cool blue light experiment kit
2.Digital camera
3.Lab notebook
4.2 Styrofoam cups
5.Measuring cups
6.Kitchen thermometer
7.Metal spoons
8.Timer
Material
Procedure
Procedure
1. Add 1/3 cup of cold water to a Styrofoam cup
Timeline
2019
Conclusion
Conclusion
Luminol is used in the fields of forensic medicine and forensics. As traces of blood that were left at the crime scene are revealed, even if this blood has been wiped and no longer visible to the eye, as Luminol interacts with the iron component in the hemoglobin of blood giving a blue glow indicating the exact location of the blood.