Leaf Chromatography

On Friday, October 23 our class did an experiment to find out what colors were in leaves. We used red, green, and yellow leaves. My group had red leaves.

leaf exp

Filters showing the leaf color bands

First, we tore up the red leaves. Second, we put them in a test tube. Third, we covered them with 25 ml of rubbing alcohol. Fourth, we put the test tubes in hot water for 30 minutes. Then we put a strip of a coffee filter in each test tube.

Over the weekend the true colors of the leaf separated into bands of colors. Our red leaf showed yellow, brown and pink on the coffee filter.

Written by Aiden, Second Grade Scientist

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