HOW TO MAKE GALAXY ROSES? SCIENCE FAIR PROJECT IDEAS AND EXPERIMENTS | RAINBOW FLOWERS Colored flowers amazing and easy to do at home.
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0:00 Colored Flowers (Rainbow rose)
1:42 The explanation colored flowers

THE SCIENCE OF COLOR CHANGING FLOWERS
The cut flowers take up water through their stem and the water moves from the stem to the flowers and leaves. Water travels up tiny tubes in the plant by a process called Capillary Action. Putting a colored dye in the water in the glasses allows us to observe capillary action at work.

What is capillary action?
Capillary action is the ability of a liquid (our colored water) to flow in narrow spaces (the flower stem) without the help of an outside force, like gravity. As water evaporates from a plant, it is able to be pull up more water through the plant’s stem. As it does so, it attracts more water to come alongside it. This is called transpiration and cohesion.

#1 Capillary action Inside the stem, there are tube-like transport tissue, called xylem, that brings water and nutrient to different parts of the plant. Water molecules are attracted to the surface of the xylem cells by weak electrical attractions. This sticky property is called adhesion. Water automatically moves up the xylem due to adhesion and the resulting movement is called capillary action

#2 Cohesion Water molecules are not only attracted to the surface of xylem (adhesion), but they are also attracted to one another. This property is called cohesion. Because of cohesion, water molecules fill the column in the xylem as they move up and act as a continuous stream of water

#3 Transpiration Water evaporates from the plant through transpiration. As water evaporates in the petals or any part of the plant exposed to air, a negative pressure is created in the xylem, resulting in suction pulling the water upward just like you draw water upward when you suck on a straw

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