Flowers absorb water through their roots (or the stem in this experiment) and draw it up through the stem and into the petals using capillary action.
Capillary action is the movement of a liquid through or along another material against an opposing force, such as gravity –
This experiment creates a fantastic visual result for how plants drink water. After all, we’re so used to water going down. For example, the rain falls down, and bathwater goes down the drain. However, flowers make water go up, and up against gravity too.The Xylem of the flower works like an elevator and brings the water from the cup all the way up the plant’s stem and into the plant’s petals. When it brings the dyed water up it ends up dying the plant’s petals. The Xylem is what allows the plant to get water from the roots all the way to the petals.
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