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Ink chromatography
Stephen Gallagher, teacher at Harry S. Truman high school in the Bronx, shares his class on Forensic Science through the website Crime Scene. In this hands-on class, students learn basic forensic techniques to analyze criminal evidence, such as fingerprints, blood, DNA, handwriting, hair, fibers, white powders, footprints and tire tracks. This particular link is to a lesson plan on how to analyze water-based and ball-point dyes using paper chromatography.
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