How to Change Flower Colors With Dye

Plants give off water vapor in a process called transpiration. The water is released through pores known as stomata that are located on the leaves, flower petals and stems. Transpiration triggers roots to absorb more moisture to be distributed through the plants. One way of demonstrating this process is by placing white carnations in water mixed with dye. The flower petals change color within a day of absorbing the colored water.

Things You'll Need

• 1 cup water
• Flower vase
• 20 drops food coloring, any color
• Scissors
• 1 white carnation

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Instructions

1. • 1

     Add 1 cup water to a flower vase.

   • 2

     Mix 20 drops of food coloring with the water in the vase.

   • 3

     Cut 1 inch off the carnation's stem at a 45-degree angle.

   • 4

     Place the white carnation in the vase with colored water. Set the vase aside and observe the petals change color in the next 24 hours.