12. Lunar Ice Cream
The purpose of this activity is to give students a demonsrtation of freezing
at different temperatures, to show how different compounds freeze at different
temperatures (salt lowers the freezing temperature of the ice making it
act "colder" ) and to introduce them to 3 common temperature
scales -Farenheit, Celsius and Kelvin.
Students will place 1/4 C of ice cream mixture into a small baggie
Seal the baggie completely.
Place the sealed baggie into a large baggie
Add 1/4 C rock salt and ~2Cs crushed ice.
Seat the large baggie.
Agitate (shake) bag for ~ 10 minutes. When the mixture sealed in the
inner small baggie is thickened, remove it from the large baggie, open
and dig in
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