Free online teaching resources
Photosynthetic Pigments: Virtual Extraction and Chromatography
Use a rotatable 3D lab bench to select materials, add reagents, grind, filter, apply repeated sample lines, run paper chromatography, and identify four pigment bands.
What to exploreExplore pigment extraction and chromatography bands.
Review pigment extraction and separation at a virtual 3D bench: select materials and reagents, grind, filter, apply sample lines and examine chromatography bands.
Using it in classPredict the procedure, then review each step.
For preparing for green-leaf pigment extraction and separation, reviewing the procedure, and interpreting chromatography results. A computer or classroom display is recommended.
Use the lab to predict the procedure before a practical lesson or to review operations and pigment bands afterwards. Ask students to explain the purpose of each step.