The lab is we need to make a milk to ice creams. First, we need to pour a milk to the ziplock. Second, put the ziplock into the blue bucket, then put the ice into the blue bucket too. We need to mix it until it freezes, then we add toppings.
1. Why do we add salt to the ice?
Ans. The salt makes a temperature decrease so it will be cooler.
2. Why do we add the cookies and other things, only after the milk has frozen slightly?
Ans. Because, if we add it when milk not frozen, it will make them frozen and taste bad.
3. What are two factors that affect the freezing you think?
Ans. I think salt and pressure.
4. why do you need a bit of air in the bag?
Ans. We need it because maybe it will help milk frozen fast.