Slushy Food Science Activity
Enjoy a slushy fruit drink in any kind of weather. With a little time and patience you can transform a simple glass of juice into a fun slushy treat with this fun food science experiment.
In this experiment, salt is added to ice to lower its melting point. Eventually when the ice melts it will form a very cold salt water mixture. Over time, the the temperature of the juice is transferred to the salty water. This makes the juice get colder and colder until it freezes. The juice would eventually turn solid, but because of your frequent stirring, the icy mixture is broken up and slush is formed.
If you are doing this experiment for a cool treat on a very warm day, you may have to add a little bit of extra ice to the salty water solution that forms from the melted ice and salt.
How to Do It