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In this activity on page 5 of the PDF (Plants—The Green Machines), learners use chromatography to separate and identify pigments within various leaves.

$1 - $5 per student Ages 8 - 14 1 to 2 hours
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Learners use chromatography to separate and analyze the mixture of pigments in leaves. Use this activity to discuss photosynthesis as well as why leaves change color in autumn.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes