The lone score came from captain Tessa Janecke.
The Nittany Lions kept their Big Ten title hopes alive ahead of their regular season finale against No. 2 Nebraska.
Seven goals are the most the Nittany Lions have scored this season.
Penn State extended its undefeated start to 8-0 for the first time since 1993-94.
The Nittany Lions can win the Big Ten with their upcoming two matches against Rutgers and No. 2 Nebraska.
