Capillary Action of Plants is Revealed by Food Coloring Experiment
Capillary action of plants is revealed by food coloring experiment by placing flowers and celery in water with food coloring. We had some success and a failure. Plants use capillary action to bring water up the roots and stems to the rest of the plant. Be sure to scroll down for free student observation PDF to download.
First, we tried baby’s breath and some antique Carnation flowers that had been in an arrangement (so they were not quite fresh). Basically, it didn’t work. I asked the kind florist at Maple Grove Whole Foods who explained I waited too long. We enjoyed our flowers first and then tried to see if the capillary action of plants could be demonstrated. She said just like a Christmas tree stops drinking water, the flowers did, too. That is a good analogy for children. We added food coloring to the older flowers in the first attempt. Too late!
If At First You Don’t Succeed
We had no luck with these even after several days. I thought it should have only taken several hours. We started over!
Fresh Carnations from the Florist
Next, we actually went to the florist and bought real and fresh carnations. Sarah is the Outstanding Employee from Whole Foods who was kind enough to help me and figured out “old fashioned” carnations would have worked better. I had noticed many people used carnations for this experiment so there must be a reason why. For good measure, we also bought celery for the same reason, I have noticed online many people use celery to demonstrate capillary action in plants. Here they are ready to absorb the food coloring!
After a few hours, we had action and could observe some changes. Blue worked the best, and purple worked OK. That orange looked like it might not work, and it never did work on the flower even though I added more food coloring. Orange did work well for the celery. You can see some blue around the tips of the celery leaves, also.
By the next day, more color was showing except for the white flower in the orange food coloring. It was easiest to observe by removing the plants from the test tubes and colored water.
We tried to see what had happened with close observation.
This page has links to free science printable blog posts. The printables and resources are available at the blog post links. There are more, so please use the search bar in the top right of each page to search for other resources.
The bubbling snowman is simply a version of using baking soda and vinegar which children never seem to become tired of doing. When the bubbling begins, it looked like it is snowing. Please see the blog post here for more information and a short video.
Observe and journal about a tree for an outdoors science activity. Visit the same tree a each season of the year to notice what is happening. More information and a free PDF is available at the blog post.
Have you see the dancing dime experiment to demonstrate that warm air takes up more space than cold air? See the post at this link for more information as well as a very short video.
Solar Bead Necklaces are amazing for children but do not tell the secret while inside and working on the project. Let children discover for themselves how the sun causes these beads to reveal their colors. They will be happy to share the information with you! For information please see the blog post at this link.
Watch Me Grow, Rabbit is a nonfiction book for children with facts, information, and photos that show how rabbits grow and live. The free printable at the blog post has a worksheet and answer key to accompany the text.
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
The technical storage or access that is used exclusively for statistical purposes.The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.