density of cream is lighter than milk
The fats (i.e. cream) from the milk will dissolve in the gasoline and the the resulting gasoline/cream solution will float on the water from the milk.
Gasoline
Obviosly Ice cream has milk, but their are certain chemicals in one another. Vanilla ice cream has a chemical named SIO which provides the VANILLA ice cream to float; & Chocolate ice cream has another chemical named TEO which allows the CHOCOLATE ice cream to sink to the bottom of the container.
Cream actually is not water soluble, which is why it tends to float to the top of milk, and requires a special process to mix it in, if you want your milk to be homogenized.
Cream is part of the milk when it is first taken from the cow. If allowed to sit, cream will naturally float to the top of the milk and it can be skimmed off, so yes, I suppose cream has milk in it.
Milk has a density of between 1027 and 1037 kg/m3, at 20 degrees Celsius, depending on the type of milk. Water has a density of about 1000 kg/m3, at 20 degrees Celsius. Therefore, milk is more dense than water.However, heavy whipping cream is less dense than water, due to the added milk fat. Heavy whipping cream is about 994 kg/m3.
The density in the ice cream.
It depends if the carton is full or not. If the carton is empty, then it will float. If their is milk in the container, then it won't float.
float
Float. (They are less dense than milk)
No. Milk has cream in it. When it is processed the cream is removed leaving the milk. About 40 years ago you could buy milk with the cream still on top.
Cream is the fatty parts of whole milk. You cannot churn milk to make cream but you can process whole natural milk to get the cream.