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Botany Science Fair Project

Changing the Color of Flowers

Changing the Color of Flowers | Science Fair Projects | STEM Projects
Let's see what happens when we put white colored flowers in water with food coloring. We'll measure the water levels and observe the changes in color.


The hypothesis is that the white colored flowers will change color when placed in water with food coloring.

Method & Materials

You will cut the stems of the daisies, measure the water, add different food coloring to each glass with water, and place the daisies in the glasses. To see a change in the flowers' color, check them every 2 hours. You should notice the colors becoming more vivid after 24 hours.
You will need three white daisies, three clear glasses, two different colors of food coloring, a cutting board, a knife, water, a measuring cup, a ruler, a pencil, and paper.


After 24 hours, the flowers had changed color. The blue flower was a deep blue, the red flower was a bright pink, and the clear flower was a light yellow. The amount of water used by the flowers was also measured, and it was found that the flowers had used up the water in the glasses.

Why do this project?

This science project is interesting because it shows how flowers use water and how they can change color.

Also Consider

Variations to consider include using different types of white flowers such as white roses or carnations, making a rainbow rose by splitting the stem into the number of different colors you'll be soaking the rose into (see video).

Full project details

You can find additional information and details for this science fair project here. Have fun exploring!

Related videos

Hey there! Here are some awesome videos about this science project that we think you'll really like. They're not only super fun, but they'll also help you learn more about the science behind the project. So sit back, relax, and get ready to have some fun!!
Get ready for some floral fun! Watch as these flowers change colors when placed in different colored water. Want to take it to the next level? Try placing the flower in a different colored water every day and see what happens!
Have you ever seen a rainbow rose? These special blooms have several colors on a single rose, and they're made possible by splitting the stem and soaking in different colored water! If you want to learn how to make your own stunning rainbow roses, be sure to check out this video and follow along with the step-by-step instructions.
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