 your results
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Jodi of NS
Turn milk into a solid!
- skim milk
- white vinegar
- microwave proof bowl
- strainer
- I bet you've heard the nursery rhyme "Little Miss Muffet." Remember how she sat on her tuffet eating her curds and whey? But, do you know what curds and whey are?
- Here's a fun way to find out:
- Check with a grown-up before you begin.
- Add 4 teaspoons of white vinegar to 1 1/2 cups of skim milk.
- Microwave the mixture for about a minute. If you're not allowed to use the microwave, be sure to ask an adult to help you.
- After a minute, the milk and vinegar will be separated into two parts, a liquid and a solid.
- Here's what happened to the milk. By adding the vinegar, you have created a chemical reaction that separated the milk into two parts, a solid-the curds-and a liquid-the whey.
- Now, when you stir the milk, the curds become a "blob."
- When you strain the liquid off, you can make the blob into one big lump.
- Let it cool off, and then you can play with it. It feels like rubber. The protein in the curds is what makes it act like rubber.
- You can form the blob into shapes. If you leave it out, it will harden.
A hundred years ago, people took milk and used it like this to make plastic. Can you think of any other liquids you can separate into parts? Experiment and send your results to ZOOM.
Nikki, age 12 of Beuchannan, NY wrote:
smells bad didn't really workbut till isong it for the science fair
Dizzy, age 11 of Phoenix, AZ wrote:
it was awsome! but it was sort of wierd
Jocelyn, age 14 of Halifax, NS wrote:
hey, I tried my expirement twice, once normally, once with sour milk, with sour milk the mixture had a more gooey texture and it didn't harden as well, normally it worked perfectly and it was a pretty cool expirement. p. s. if you ever need an expirement come here i've searched for 3 hours once, couldn't find anything came here and found one in five minutes
Faith, age 11 of Yankton, SD wrote:
I put food coloring in, and I left it on my desk (opps). I advise you not to do that
Jessica, age 11 of Baytown, TX wrote:
well, I used 2% milk and it worked petty well as well as skim milk
Leroy of New York, NY wrote:
You're right, it smells like out of date milk and like some kind of cheese! Whatever you do, DON'T EAT THE CHEESE!
Bailey & Kate, age 10 of Atlanta, GA wrote:
My friend and I decided to add something to the recipie. We decided to see what would happen if we covered 2 batches, put one in the fridge and left one on the counter. 3 hours later, the non-refrigerated batch had let go of a lot more liquid and was definaltey sqwuisheyer. The refrigerated batch was pretty hard and had almost no liquid left in it. The results were astonishing. We had fun wiht plastic milk!
Jayla, age 13 of Monroe, LA wrote:
It worked very well. The milk turn into a solid!! The milk did stink!! Lol!!
Jessica , age 13 of Kingston, TN wrote:
It was AWSOME!!! It fely SO cool! I'm doing it for my school science fair!
Danielle, age 13 of Eastport, ME wrote:
It really works! And It's really fun to play with but just let me warn you it does smell =]
Stephanie, age 13 of Markham wrote:
it got all yellow, but 1 mintute later it was white and solid like!! it was definetly really cool!! I did this experiment for my science fair!! I had alot of fun except the plastic milk smells really bad!!! I tried it with choclate milk it was gross but it worked!!! yeah!!!
Madeline of Rehoboth Beach, DE wrote:
My sisters and I did this during are School Delay. They did not know the results but a kid in my science class did it. IT WAS GREAT. We also died it different colors!
Brett, age 11 of Jasper, IN wrote:
it didn't smell the greatest but that didn't stop me from doing it again it was so cool and my mom was ok with it because I did not make a mess try I did and loved it I made 5 different molds out of it one was my name another one was my favorite soccer ball its really fun when your bord.
Brittany, age 9 of Dallas, TX wrote:
mine worked out just right. try out somthing else for me to do
Shanice, age 11 wrote:
mine went brilliant I put some red food colouring in and it turned pink! pink is my fravrourite colour
Alexa, age 12 of Ottawa wrote:
it works! I try it w/ for different type of milk. skim, 1 %, 2 % and chocolate milk and it work yet it smells
Erin and Hannah of Butler, PA wrote:
we tried it for 1 min it worked but not that well. so we tried it with bigger portions and it worked very well.
Meghan, age 10 of Warminster, PA wrote:
me and my two friends did it and it was alsome. first we did it for 1 min. than 1. 25 min than 1. 30 and finnally 1. 40 all worked fin but the 1. 25 & 1. 30 worked best
Shay, age 9 of Raeford, NC wrote:
it worked the first time I did it
Roi, age 13 of Florida wrote:
It worked! It's very Fantastic! AmAzing! Try it!
Briana, age 13 of Fort Worth wrote:
the milk turned into a solid
Jailene, age 8 of Bronx, NY wrote:
I did this project with my dad and it was a great experiment
Ariel, age 11 of Jacksonville, NC wrote:
When I did it at first it turned out nasty but then when I did it again it turned out perfect I forgot a step.
Benji, age 8 of New Port Richey, FL wrote:
When we poured the milk with the vinegar, the milk turned into this blob like thing. It kind of felt like play-do.
Drew, age 11 of Springfield, VA wrote:
It worked, but what is the chemical formula for all of the materials. Milk and the Vinegar?
Sierra, age 4 of Sacramento, CA wrote:
It did not work, but the second time it did, so try it!
Karen, age 13 of Phoenix, AZ wrote:
It was cool. Awsome
Zachary, age 7 of Vestal, NY wrote:
it worked great my sister and I did it.
Paulkeri, age 11 of Augusta, GA wrote:
i did it with skim milk I think it work I did it two times but I dont think it work the first tme. The first time I did it with 1 minutes. the second I did 2 mintues
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