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Science · All grades

St. Patrick’s Day Green Chromatography Chemistry Lab

Students investigate spinach and food coloring through paper chromatography using isopropyl alcohol and cellulose paper.

$3USD · Digital download

Students investigate spinach and food coloring through paper chromatography using isopropyl alcohol and cellulose paper. The lab includes chemistry background, polarity review, a testable hypothesis, procedural directions, observation recording, and Rf value calculations.

2 pagesof ready-to-use material · PDF
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What you’ll teach

Clear goals. Useful learning.

  • Students will formulate a testable hypothesis about pigment composition.
  • Students will perform a paper chromatography investigation safely and accurately.
  • Students will explain how polarity and intermolecular forces affect separation.
  • Students will calculate and interpret Rf values from chromatogram data.