Color Changing Flowers Science Experiment
Learn how flowers drink up water with this easy color changing flowers experiment. This easy science project can be made with a few simple ingredients you already have at home. It’s is a fun science lesson that’s great for any time of the year. So next time you’re at the grocery store, grab some white carnation flowers and try this fun color changing flowers experiment.
To make the color changing flowers science experiment we’re using liquid food coloring to see how flowers drink up water.
This is a great way to learn about flowers and how they grow. It will teach your kids the importance of watering plants and why they need it to survive.
The first step is to download and print out the science experiment worksheet from the free resource library. Your child can use this worksheet to record their observations while you make the color changing flowers.
SET UP YOUR COLOR CHANGING FLOWERS SCIENCE EXPERIMENT IN MINUTES!
Fill each glass with water about half way. Then add 10-15 drops of liquid food coloring.
Continue adding food coloring into each glass until you have a variety of colors. I used red, purple, yellow, green and blue.
Once you’re done, put one flower in each glass. At this point, have your child record what they think will happen on the science experiment worksheet.
We started this experiment around 4:00 p.m. About 2 hours later you could see a faint hue of color showing up on the blue and red flowers. By the next day, the color began to come through the edges of the flower petals quite clearly.
We waited one more day to see if the color would change any more. The photos above and below are taken after two days. You can definitely tell that it’s working by this point! You can keep the experiment going for as long as the flowers allow. See how many days you can go and whether the color continues to change.
SO WHAT’S HAPPENING HERE? THE SCIENCE BEHIND THE COLOR CHANGING FLOWERS SCIENCE EXPERIMENT:
In this experiment, your child will learn about capillary action. This is how plants soak up water from the ground in order to survive. The molecules of water move up the roots and stem to the rest of the plant. If you want a more in depth explanation, this is a great resource explaining capillary action. Depending on how old your child is, you might want to simplify the explanation.
The food coloring helps to show how the water molecules move up the stem and into the flower petals. But it might not be how you think, because the tip of the petals will change color first. So interesting!
While all of this is happening, ask your kids lots of questions during the process: What do they think is going on? What do they see? What do they think will happen if they wait another day? Use the science worksheet below to keep track of the experiment.
This Color Changing Flowers Science Experiment is so much fun for the entire family. It’s super easy to set up and great for learning more about why plants need water to grow. All you need are some white carnations, food coloring and water. Add the food coloring to the water, then place one carnation in to each glass. Keep an eye on the flowers for a few days and you’ll watch the colors begin to change.
I hope you enjoyed learning how to make this easy science activity for kids! If you make this, please do email me — I love to see your science experiments! And, as always, let me know if you have any questions.