Capillary Action Observed in Celery, Celery Absorbing Blue Dye
Capillary action happens when water molecules are more attracted to the surface they travel along than to each other. In paper towels, the molecules move along tiny fibers. In plants, they move through narrow tubes that are actually called capillaries. Plants couldn't survive without capillaries because they use the water to make their food.
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Photo credit: © Phil Degginger / Alamy / Afripics
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Keywords: absorbing, action, blue, botanical, botany, capillary, celery, color, dye, observed
