The Nittany Lions took an early lead and fought all game long to maintain it against Nebraska's strong efforts.
After a slow start, Penn State scored five unanswered against the Leopards.
The Nittany Lions opened Big Ten play with the win.
Junior Maddy Christian gave Penn State the lead late in the second period.
Amelia White's early goal was not enough to overcome the Hawkeyes.
Penalties were an issue for both sides.