October 7

More Leaves

Why do leaves change colors?  Click here to find out! My scientists know that green leaves have a pigment called chlorophyll which helps the plant make food in a process called photosynthesis, but how can we find out what other pigments are in a leaf? Chromatography is the answer.We tore leaves into small pieces and placed them in rubbing alcohol. The leaf pigments separated as the mixture traveled up the filter paper.

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