Gavin McKenna potted the game-winning goal on the power play for his first collegiate goal.
Penn State's worst fear manifested itself in the Rose Bowl as one loss turned into two.
Penn State women's hockey is now 4-0 on the season, completing two straight sweeps.
Penn State's defense gave up 435 yards of total offense to the Bruins on Saturday.
"There's going to be a lot out there to divide, divide, divide, and we got to tune all that out and stick together."
The season went from bad to worse for the Nittany Lions in Pasadena.