Is a float the same as a soda?
you have entered a black hole food question
There are many regional variations of such creations, and the DIFFER greatly as to what part of the country you are in.
Here in Cincinnati, a Milk shake is scoops of ice cream combined with milk and syrup then blended together.
Where as when I lived in Boston, a Milk shake was a glass of milk with syrup added and then shaken. (like M Hoffman mentioned above)
Here is Cincinnati a soda is a soft drink (coke or pepsi)
A float is made of a scoop of ice cream and your fav soft drink poured over it
Brown Cow = Root Beer Float
Pink Cow = Barq's Red Creme Soda over ice cream
a malt/malted is a milkshake with added malt powder.