As part of our science curriculum, students recently carried out a practical investigation to explore the hidden pigments found in spinach leaves. This hands-on experiment introduced them to paper chromatography, a simple but powerful technique used by scientists to separate and identify different substances within a mixture.
The process began with students carefully crushing fresh spinach leaves to release their natural pigments. The plant extract was then applied to chromatography paper and placed in a solvent. As the solvent moved slowly up the paper, it carried the pigments with it. Because each pigment travels at a different rate, distinct colored bands began to appear, revealing the pigments that are usually hidden from view.
Through their careful observations, students identified two key pigments:
Xanthophyll – a yellow pigment that helps protect plants from excessive sunlight.
Chlorophyll – the familiar green pigment essential for photosynthesis, the process by which plants convert sunlight into energy.
This activity not only highlighted the fascinating chemistry of plant life, but also helped students develop key scientific skills such as observation, data analysis, and understanding experimental techniques.
Hands-on investigations like this one bring classroom learning to life, allowing students to see the science behind everyday natural processes.
📸 Below you can view our photo gallery showcasing the students’ work during the experiment.
