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Try this class practical to use paper chromatography to separate and investigate the pigments in a leaf. Includes kit list and safety instructions.
Uncover the hidden colors of fall leaves by separating plant pigments with paper chromatography.
This autumn focused chromatography practical is easy to set up and suitable for KS3 and upwards. As autumn arrives leaves start changing colour, often from green through various reds and orange shades to yellow and then brown as they fall from the tree.
HST's leaf chromatography experiment reveals hidden colors in green leaves and lets you predict their fall colors.
28 wrz 2021 · How Leaf Chromatography Works. Paper chromatography separates pigments in leaf cells on the basis of three criteria: Solubility; Molecule size; Polarity; Solubility is a measure of how well a pigment molecule dissolves in the solvent. In this project, the solvent is alcohol. Crushing the leaves breaks open cells so pigments interact with alcohol.
In this science project, you will use paper chromatography to separate the colored pigment molecules from fall leaves. By collecting leaves at different stages of turning, you will be able to capture all of the colors of fall.
Leaves are actually more colours than just green but Chlorophyll is so dominant most of the summer that its green colour covers up all the other natural colours in the leaves. We can separate the colours of a leaf by doing this leaf chromatography science experiment.
