Curated OER
Using Plant Pigments to Link a Suspect to a Crime
High schoolers use chromatography to separate plant pigments collected from a fictitious crime scene and suspects. They compare the Rf values of the plant pigments to determine whether the plant pigments found on any of the suspects...
Science Buddies
Science Buddies: Make Your Own Markers
Do you ever wonder how markers are made? Where do all of those colors come from? Many of the colorful dyes we use come from plant pigments. Pigments are what make the world around us so colorful. How do chemists turn those natural plant...
Museum of Science
Museum of Science and Industry: Online Science: See the Colors in Leaves
A step-by-step procedure with pictures for the process of chromatography. Chromatography allows students to see the pigments or coloring of the tissues of plants.