photocredit = Jensen LiInclass today we made ice cream! everyone was really excited to get started the procedure was simple but took time and the right measurements to make it correctly. once we got our partners and plastic bag we began to fill them with all the ingredients listed below. after, we began to flip the back back and fourth holding it from the top. after maybe 3-5 minutes my partner and i were ready to test the ice cream. we were nervous at first because other kids had complained that the salt had seeped into the ice cream and gave it a bitter taste. when we finally tried it it tasted pretty good! some parts were thicker than others but overall it was delicious!
Materials/Ingredients:
- plastic bags
- milk
- sugar
- vanilla extract or chocolate syrup
- ice
- salt
- spoons
- measuring spoons/cups
Science
Ice has to absorb energy in order to melt, changing the phase of water from a solid to a liquid. When you use ice to cool the ingredients for ice cream, the energy is absorbed from the ingredients and from the outside environment When you add salt to the ice, it lowers the freezing point of the ice, so even more energy has to be absorbed from the environment in order for the ice to melt. This makes the ice colder than it was before, which is how your ice cream freezes.
Theories
-freezing point depression
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