WARRENDALE — Penalties committed by the Mars hockey team early in its game against Quaker Valley led to the Planets’ undoing. Three goals by the Quakers in the second period gave the unbeaten squad all the breathing room it needed in a 4-0 win over Mars Tuesday night. The Planets were able to kill a head contact penalty, but a five-minute kneeing penalty by Max Master, coupled with a 10-minute game misconduct and unsportsmanlike penalty for the bench seven seconds after, put the team in a tough spot. Still, Ryan Dickson’s power-play goal with 8:33 left in the first period was the only one the Planets surrendered in the frame. “We needed to do a better job of controlling the players,” Mars coach Steve Meyers said. “We got frazzled out there.” The play of Mars goalie Christian Knapp kept the game close as the senior made 51 saves while Quaker Valley netminder Parker Sherry was credited with 22. The Quakers (18-0) have outscored their opponents 149-14. In the second period, Ryan Lottes, Clayton Bouchard and Dickson each scored with Dickson and Lottes each picking up two assists, giving Lottes three on the night.