Homemade Butter Science Experiment

Friday, October 20, 2017

Homemade Butter Science Experiment

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Looking for a fun, practical kitchen science experiment? Your kids are going to love making homemade butter and learning about the science behind this science project.
Homemade Butter for Kids - Try this easy science experiments for kids. It is super easy to make homemade butter in a jar and is such a fun kitchen science experiment for toddler, preschool, kindergarten, first grade, 2nd grade, 3rd grade, and homeschoolers.


Science is everywhere. I say it all the time, because it is true. One of the best places in your home to find science in action is your kitchen. Cooking and baking requires chemistry. Eating and digestion requires biology. It's all science!


Many of the foods we eat are created by using principles of chemistry. Butter is one of them. Butter is created from cream. Cream is basically milk with a high fat content. When cream is agitated with a churn, or shaken in a jar, the fat starts to glob together and separate itself from the liquid. This glob of fat is butter and the liquid is called buttermilk.


Let's learn how to make butter and then we'll take a closer look at the science behind it.

Homemade Butter In A Jar

heavy cream and jar is all you need to make butter in a jar

To make a small amount of butter, you really only need two things - heavy cream and a clean jar. Fill your jar half full and tightly replace the lid. Now, you are ready to shake!

kitchen science experiments

And shake.

shake and shake and shake the heavy whipping cream

And shake some more.

a ball should begin to form in the heavy whipping cream

Stop every once in a while to check the progress. You should start to see a little ball forming. When it seems to stop growing and the liquid looks thin, you are done! Note how long this process takes.

separate the butter from the homemade buttermilk

Take the butter out of the jar. The remaining liquid is buttermilk. You can save the buttermilk in the refrigerator for a recipe if you would like.

how to make homemade butter

You can spread the newly made butter on crackers or bread to have a taste. Does it taste like the butter you buy from the store? Regular butter has added salt. So your butter might taste a little different unless you use unsalted butter in your home. Refrigerate any leftover butter.

homemade butter science project

The Science Of Making Butter

As I said before, butter is created when the fat in cream starts to stick together. You might be asking, "What keeps the fat from sticking together all the time?" Small amounts of fat cells in cream and milk are held together by a tight membrane. Under normal conditions, these membranes keep fat cells from grouping together to form large globs.

When the cream is agitated by the shaking of the jar, the fat cells bump against each other and the membranes burst. This frees the fat cells to clump together to form large globs and finally a large clump of butter.



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Marci is a Christian wife, homeschool mom, science geek, softball coach, hockey mom and blogger, who needs her morning coffee, hair done and make-up on before attempting of those things. You can find her blogging at The Homeschool Scientist



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