Cori Dyke scored the game's lone goal.
Sophia Galdieux scored her 11th goal of the seaon in the loss.
The combo guard plays for Southern California Academy in Castaic, California, and is ranked No. 22 in the state, according to 247Sports.
Penn State was able to ride a two-goal advantage into the second half to put away its conference rivals.
Grant Haus, TJ Malone, and Jack Posey will lead the Nittany Lions this season.
Penn State will host nine home matchups at the Bryce Jordan Center and travel to nine games.