Spinach Pigment Chromatography

Description

Spinach Pigment Chromatography Lab Activity – Chemistry 🍃🧪 Turn chromatography into a meaningful chemistry investigation with this student-friendly Spinach Pigment Chromatography Lab Activity. Students will separate the different pigments found in spinach using paper chromatography, then connect their observations to key chemistry concepts including polarity, intermolecular forces, molecular structure, stationary and mobile phases, and retention factor (Rf) values. Rather than simply following a procedure, students are encouraged to predict, observe, calculate, analyze, and explain why different pigments travel different distances. This resource includes clear step-by-step instructions, safety guidance, pre-lab prediction questions, a chromatography setup diagram, observation tables, \(R_f\) calculations, AP-style analysis questions, error analysis, a Claim–Evidence–Reasoning conclusion, and an exit ticket. It is ideal for Chemistry, advanced secondary chemistry, chromatography units, intermolecular forces, polarity, or enrichment activities. Students will explore: Paper chromatography and separation techniques Stationary and mobile phases Polarity and intermolecular forces Beta-carotene, xanthophylls, chlorophyll a, and chlorophyll b Molecular structure and chromatographic behavior Calculating and interpreting \(R_f\) values Experimental errors and improvements Evidence-based scientific reasoning What’s included: A ready-to-use, printable student worksheet designed to help students understand not only what happens during chromatography, but why it happens. One spinach leaf. Several pigments. Different structures. Different intermolecular interactions. One powerful chemistry investigation. 🍃 Perfect for practical lessons, revision, laboratory skills, or an engaging application of intermolecular forces and polarity.