The Mass is a true sacrifice, and this means that when differentiating the Catholic Mass from the Protestant “worship service,” the two should be seen as apples and oranges. They are not two styles of trying to accomplishing the same thing, but are geared toward entirely different purposes. It is a difference of kind.
That the Mass is a sacrifice is stated clearly in its full name: The Most Holy Sacrifice of the Mass.
The Mass includes an element of praise, and so it contains as one of its components what for Evangelicals is the entirety of the service. This will become clear when we outline the parts of the liturgy as it unfolds during each performance.