The Hawkeyes lead the nation with an average of 91.9 points per game, led by Clark's 32.4.
After losing for the first time in seven games, the team is getting back on track before facing No. 2 Iowa.
The Nittany Lions are now ranked No. 15 after a one-point season-opening loss.
Nearly 5,000 folks poured into the Bryce Jordan Center to support Penn State's fight against breast cancer.
Penn State had its six-game win streak snapped after turning the ball over 17 times.
Penn State never trailed on its way to a sixth consecutive victory.