There were flowers that drank up almost all of the water that was in the vase. That made me think of the question, "how do flowers drink water?"
There's tiny capillaries like little veins in the flower stem. If you look at a leaf you can see the tiny veins and capillaries. They're like tiny tubes that attract the water molecules. The tubes bring the water to the whole flower so the flower can drink.
Here's an experiment you can try with carnations to see how flowers drink water.
I learned this from: