| 
|
We made butter. We put a marble in a plastic bottle and added double cream. Then we shook as hard as we could...
After a while, we noticed that we couldn’t hear the marble anymore. Then we noticed that there was something solid and yellow forming inside the bottle- butter!! We cut open the bottle and poured off the liquid buttermilk.
We learned that cream is a mixture. It is made of tiny drops of water mixed with fat droplets and protein. Shaking the cream in the bottle makes the fat droplets stick together. We imagined all of the fat droplets getting frightened when the bottle started shaking and clinging to each other for safety. This makes butter. The liquid part has the protein and that is the buttermilk. Finally, we spread the butter that we made on some muffins. It was tasty!
