Alright, so mass is a property of a physical body. During physical changes, such as acceleration, force, etc, the mass stays the same since we are not affecting its physical shape, just where it is physics wise. So yeah mass is conserved during a physical change.
(This is very confusing I'm bad at explaining things sorry)
White bread
Rationale: A
sweet potato is equivalent to a serving of bread. One cup of skim or nonfat
milk is a serving of milk. A slice of avocado is equivalent to a serving of
fat. One teaspoon of mayonnaise is equivalent to a serving of fat.
