Whenever we had white flowers in the house growing up, I’d give them the food coloring treatment. It’s always fascinating to see how this process works with the flowers. I’ve found the Carnation flower works best for this cool science project.
I bought a $4 bunch of white carnations at the local Walmart. Then we got out our flower vases ready with water. Don’t use the flower food it may come with, I did once and it didn’t work as well. Then pour in about 10 or so drops of your desired food color. We chose blue for the big bunch and tried a little red one too. I only used about 5-6 drops of red color for the small vase. Cut your flower stems off a few inches and place in the water.
It only took a few hours before we were seeing a hint of blue. By the next morning, the colors were all throughout the flower. They made a pretty border in blue and red.
My kids loved it and were amazed when the white flowers started to gain a touch of color. We have also done this project with food, celery works great. It’s fun to watch science in action.
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I’ve been meaning to try this.
What a fun project- I bet the kids would love that!
I wake up in the morning thinking what fun thing can I do with my kids today? Then I click on your site and TA-DA! There is my answer. Thanks so much! Keep the great ideas coming!
This is great! I’ll definitely be doing this with my son.
I think I tried something similar with a carrot when I was a little kid…
my mom used to do this with me and we used peonies that were growing in the back yard. watch out for the ants though.
I just recently started reading your blog, and this is a perfect example of what I love about it. We used to do this as kids, it is fun and easy, but I had never thought to do it with my children — now I will. I dusted off my air-popper a couple of weeks ago, at your suggestion, and my kids didn’t even know what it was! Now they prefer that method to microwave popcorn. Thanks for helping me ward off mom burn-out.
You could also try cutting the stem in half or quarters (about half an inch above the base) then put each piece of the stem into different colored waters and get multi colored flowers.
NEAT! I am trying this one for sure.
We did ours yesterday; the kids think it’s pretty cool. It was good to get to talk about how things work inside the plant.
Be sure to help your kids understand WHY this happens: the water molecules’ attraction to each other (surface tension) is stronger than to the pull of gravity, so the dyed water basically “climbs” up the tubes in the stem of the plant – it’s called capillary action.
You can help your little ones see surface tension by using eye droppers to drop small drops of water onto pennies (lay them flat on the table.) The water forms a dome on top of the penny because the water molecules hold on to one another. Just be sure to drip the drops from close to the penny – not from way up above. Surface tension is also why those little bugs are able to walk on top of the water instead of sinking…
You can also see capillary action if you place two glasses next to each other one full of water and one empty with a piece of cloth draping from one to the other after a while the empty glass will have some water in it, this is a good way to water your plants if you are going away for a few days, try it and see.
Also about water tension, if you fill a glass to the brim with water then add pennies to the glass, the water will seem to form a slight bulge over the rim of the glass, when it has done this drip a small drop of detergent into the glass and the bulge will be destroyed due to the action of the detergent which breaks down the surface tension, this is how detergents can remove dirt and grease, if you remove surface tension water and grease molecules have two similar attractors which will bind together in the absence of tension and so water will bind with the grease and dissolve it.
oh my. i love all of your make and takes. i can’t believe you are going strong throughout your pregnancy! congrats.. you are my inspiration. loving all the unique things you are teaching your kids. so so fun.
You can also do this with celery!! I did it with my preschool class today!
I did this with white peonies years ago, did them all in rainbow colors, then put them in a huge vase with ribbons tied around them Martha Stewart style, sat them on the patio table. Many neighbors commented on them. They are neat.
This is cool! I’ll give it a try.
You can do this with celery as well my mom used to do it for me when I was a child.
Thanks for this. Article who your writen was so important for me. Thanks again :)
It works with tulips also perfect. : )
I think it will be fun to see how the flower changes colors. I’ll give it a try to see how it turns out!
how long dose it take for the color to get to the pedal?
Loran – It should only take a few hours before you start to see a few streaks of color. But overnight, it should be through most of the flowers veins and bright. I did this the first time and didn’t get enough color coming through, so I had to up the drops of color. Good luck and I hope they turn out bright for you!
I have done this with Queen Ann’s Lace–which I think is technically a weed. I now live in western Canada and you have to pay for Queen Ann’s Lace at a florist shop because it doesn’t grow here!
how long does it take for them to change colors? i work in a child care lab and i need an activity but i only have one day!
I’m a 7th grader and I’m doing a science project on this same topic. I took some bean plants and planted them in some soil. I watered one plant with regular water, and another with water that had purple food coloring in it. They just sprouted 3 days ago, and the plant being watered with purple water isn’t turning very purple…
Anyway, hope you don’t mind if I use this cool site on my Bibliography…?
this is so cool im doing a project about it in school right now so this helped me understand how to do it better! THANKS
i was also wondering what other flowers you cou use?
i think i’m gonna use this projectfor the science fair at my school =) thanx alot =)
oh wow! i think this idea is way awesome…..i’m gonna use it for school, if its ok? ok…..whatever….bye ;-)
Very interesting, thank you.
hello again, i used this 4 my project at school…and i used carnations, lilies, and daisies…and the daisies & lilies died, but the carnations are still alive. why did the other flowers die and the carnations live? =\
i was in a play and all they had was white flowers so i used yellow die and it worked really well
i’m in high school and got a cool idea for a science project that would be little work but a lot of fun. i havn’t done it yet, but i’m going to turn some white flowers yellow, and some blue, and then put the yellow ones in blue water and see if they turn green and the same with the blue ones in yellow water. i think it’ll be pretty cool
I remember doing the same thing for a project when I was still in elementary. And I was so amazed back then. They’re so pretty with that hint of pink.
i did a scienc fair project and i got an a thanks to the flower in dye
They are so much fun, I’m using them for science-fair
Having done this successfully with roses and carnations… I decided to try this on baby’s breath. Needing tiny dried and pressed flowers for nail art. I was really surprised at the results. I tried red food coloring for one bunch, to get a pink tint, and blue for another and then purple.
Within three hours the baby’s breath bunch in blue food coloring was almost entirely blue. Each little flower was so beautifully colored with a nice deep blue; and not just the edges but the entire flower.
However, I was disappointed to find the red food coloring barely hinted at pink in the baby’s breath. You have to put that bunch next to all white ones to even see there’s the slightest hint of a pink tinge. And the purple never happened at all. So far all three have been sitting over-night; the blue are getting bluer but the others will not color.
Has anyone ever experimented with baby’s breath? Can anyone tell me what I might be doing wrong? All three bunches came from the same larger bunch. All three were cut at the ends in the same manner, and all three were put in the same tap water… I just can’t seem to figure out why the blue took so well and the other colors won’t.
I’d be really grateful for any advice or tips.
Thanks.
This a cool expirment..!!
I going to do this Experment for my Science project..!!
Ya im going to get an A…!!
i tried this with cows and BOOM!
This is cool, I’m doing it for a Science Fair project. Do you really need that much water?
cool
im doing this for my science fair !! ITS CHAWSOME!! XD
lol!! I said CHAWSOME ^_^
HEY its meh again!! XD the CHAWSOME person ^_^
I hope i get a A+!! CHAWSOME!! ^.^
i used this for my sicence project
I love this so much that I have the food coloring out and ready to start. Thanks so much.
This was very fasinating
i love how u did it and i have a project 2 do in elemantary school and im so going 2 get an a A
I did it too! It was awesome! 11yrs old Eagle Point Org. Yo whats up peeps!!
can you do it with ather wite flowers beacaues im doing a sinence project on the same thing.But that was COOL!!!
i am doing my science project about this, and when i did it, it was like the pics u put there!!! it was very cool!!! ;}