My Ice is Depressed
If you thought store bought ice cream was just a rip-off, well I have some good news for you. This video below will give you a cheap and easy homemade method of making ice cream. Luckily, this should not be a terrible mess. Watch the video and try it yourself! Trust me, this all has to do with freezing point depression. And you thought learning about freezing point depression was pointless!
- What is the freezing point of milk? (Ignore the added extract, sugar, etc. Search for it online)
- Before putting the salt in the big bag of ice, measure the temperature inside of it. What is the reading?
- Place the salt into the bag of ice now. Wait 30 seconds. What is the temperature of the ice/salt? What effect did the salt have on the ice?
- Why do you think the milk was able to turn into ice cream by putting it in a bag of ice/salt? (Hint: Think about all the temperatures you found in questions 1 to 3)