What this lesson teaches
Chromatography separation technique.
Separate ink colors using coffee filter chromatography!
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Chromatography separation technique.
Chromatography makes the invisible (mixture components) visible through a spontaneous physical process. Students who watch ink separate on paper witness a scientific technique used in forensics, food testing, and pharmaceutical analysis — making the concept feel professional rather than purely academic.
1. Dot marker on filter. 2. Roll into cone. 3. Dip tip in water. 4. Watch colors travel. 5. Draw results.