My 9 year old LOVES to learn, understanding how things work and why they happen just fascinates her. When she learned to read she did not want to read any of the books her friends were reading so I thought she did not like to read. That is till I noticed she was taking instruction manuals for her toys to bed and reading them, and cookbooks. We got her a few science books and all of a sudden she would not put the book down… lol. She did not get this from me, she got it from her Daddy. But I am thrilled to have such a smart girl 🙂
So I should not have been surprised when she picked SCIENCE as the theme of her birthday party this year. We did a bunch of fun experiments with the girls and it actually turned out to be one of the most entertaining birthday parties ever.
Magical Moving Milk Experiment
For this experiment you will need:
- whole milk
- pie tin or glass dish
- food coloring
- cotton swab
- liquid hand soap or dish soap
Pour milk into the bottom of the pie tin, DO NOT shake the milk this trick does not work very good if their are bubbles in the milk. Drop food coloring into the milk.
Put the cotton swab into the milk and see that nothing really happens, their is slight movement but nothing to impressive. Take the other end of the cotton swab and coat it with liquid soap. Put the coated cotton swab into the middle of the milk, don’t move it just watch what happens. The milk will magically start to move all on its own. Take it back out, add some more soap and put it in in a different spot. Watch the milk magically whirl and swirl around, it almost looks like a kaleidoscope.
Why does this happen (Explained by Chemistry.about.com)
Milk consists of a lot of different types of molecules, including fat, protein, sugars, vitamins, and minerals. If you had just touched a clean cotton swab to the milk (try it!), not much would have happened. The cotton is absorbent, so you would have created a current in the milk, but you wouldn’t have seen anything especially dramatic happen.
When you introduce detergent to the milk, several things happen at once. The detergent lowers the surface tension of the liquid so that the food coloring is free to flow throughout the milk. The detergent reacts with the protein in the milk, altering the shape of those molecules and setting them in motion. The reaction between the detergent and the fat forms micelles, which is how detergent helps to lift grease off of dirty dishes. As the micelles form, the pigments in the food coloring get pushed around. Eventually equilibrium is reached, but the swirling of the colors continues for quite a while before stopping.
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Hope he had fun!
What a fun idea!
I did this with my daughter then we decided to drop a piece of white paper on top of it, when you take it off it looks tie dyed we used them as card stock and made gifts. Use a heavy paper construction works best.
I sure don’t remember it.
Such a fun project! I’m doing this with Wesley tonight
Alizum Elena Shurrie
Milk, food color and liquid soap
Got ya 🙂
My silly boys…. glad they thought they were funny!
Hope they love it
NOPE this was cold
LOVE that we can connect from people all over the world, thanks for watching!
Let me know how it works!!!
THANKS FOR WATCHING
We did this a couple years ago at your house
That was so fun! Thank you!
Brandi Smoot – https://www.facebook.com/AThriftyMom/videos
How can i see your other projects?
When are you doing the next project?
I meant unmeasy…oops
My 3 yr old girl is laughing w your boys! She says they are funny
I love how uneasy it is…Awesome Idea!
Styrofoam plates are horrible for the environment and aren’t recyclable.
My girls love doing this but with paper in a zip lock bag
Do you homeschool?
With the different milks you can find which one isolates the dye the most and which one spreads it the dye more easily
No worries, your amazing!
Try just two color ?
What are you using?
Amazing! Cooper, Bella and Monet (like the painter) are dying to do this at home! Thank you!!
I love this project!
Does the milk have to be warm?
Tuned in from Salinas, California
This is neat
Hi from Tanzania
Still can see u.
Still here. Hi from Montana!
Yes watching from the UK
Everything is fine
5-year-old Reese just crawled into my lap to watch!
Yeah! I didn’t miss it!!!!
I wonder if you can you do this with soy or rice milk? My kiddo is allergic to dairy. I might test it out.
Amaiyah and sorayah say this is amazing and want to try this with friend in the park
This is so cool
What is this? It’s so cool
My 6 year Evan and 8 year old Fred and 3 year old Samantha are all liking this and now they want to do it
Mariahly Mirna myranda said we are doing this tonight
Awesome!!!! Gonna have to try it with my kids
Jennifer from MI says hi
The speeds of the colors moving away changed with the fat content in the milk
Cami from Cincinnati says – That’s cool
That’s neat,,never seen it done
7-year-old Hudson is watching from Kansas City
In chemistry we also tested it with 2% ,whole milk and half and half and we were supposed to test the differences
Grayson in CA says that is OH-mazing!
Hi from Wrexham in north wales uk ☺️X X X
Hi from Tanzania- East Africa
Hello from London uk can’t wait to try this out wth my girls
HI from cisco love this
Hello from cold weather Michigan
hello from Pennsylvania 🙂 I did this in chemistry my junior year of high school 🙂
You can find how to do the Milk experiment here–> http://athriftymom.com/magical-moving-milk-experiment-easy-science-experiments-for-kids/
Your link not works
It MOVES all by itself!!!!!
I actually did that with glue with some kids in a class to make art. It takes a few days for the glue to dry and you do it in Styrofoam plates.–when it dries completely you basically have a clear/colorful piece of art to hang in front of the window.
Warming up the milk is also a fun twist.
It is pretty cool… the more soap the faster it moves and swirls
My kids loved doing this experiment!
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