The science unit I am teaching is on the states of matter and so we have been doing little experiments with evaporation, condensation, and freezing. The kids learned this past week that salt lowers the freezing point of ice water and so today (Monday) we made ice cream. They loved it and at classroom meeting almost all of them said that was their favorite part of the day. Thomas and I made some last night and tested it out and it was so good. Homemade icecream is the best and who knew it was so easy to make?!
- 1/2 cup milk
- 1/2 cup whipping cream (heavy cream)
- 1/4 cup sugar
- 1/4 teaspoon vanilla or vanilla flavoring
- 1/2 to 3/4 cup sodium chloride (NaCl) as table salt or rock salt
- 2 cups ice
- 1-quart ZiplocTM bag
- 1-gallon ZiplocTM bag
- themometer
- measuring cups and spoons
- cups and spoons for eating your treat!
- Add 1/4 cup sugar, 1/2 cup milk, 1/2 cup whipping cream, and 1/4 teaspoon vanilla to the quart ziplocTM bag. Seal the bag securely.
- Put 2 cups of ice into the gallon ziplocTM bag.
- Use a thermometer to measure and record the temperature of the ice in the gallon bag.
- Add 1/2 to 3/4 cup salt (sodium chloride) to the bag of ice.
- Place the sealed quart bag inside the gallon bag of ice and salt. Seal the gallon bag securely.
- Gently rock the gallon bag from side to side. It's best to hold it by the top seal or to have gloves or a cloth between the bag and your hands because the bag will be cold enough to damage your skin.
- Continue to rock the bag for 10-15 minutes or until the contents of the quart bag have solidified into ice cream.
- Open the gallon bag and use the thermometer to measure and record the temperature of the ice/salt mixture.
- Remove the quart bag, open it, serve the contents into cups with spoons and ENJOY!
As I was walking home from school today I had to take a picture of the little park I walk through. It is just the perfect example of springtime.
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