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ACT
A lab activity that introduces chromatography using markers, plus water and acetone as the solvents. Students will take measurements to compare the mobile and stationary phases of the inks, and find the polarity of the inks and solvents. They will also be given ink that was used for a ransom demand, and must identify which marker it came from.
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- Knovation Readability Score: 4 (1 low difficulty, 5 high difficulty)