Two teams from in a STEM class at Mount de Sales Academy compete in the Maryland Regional SeaPerch Challenge at the U.S. Naval Academy in Annapolis. (Jon Sham/Baltimore Sun Media Group video)

Two groups of students in Ms. Claire Sargo's STEM exploration class at Mount de Sales Academy traveled to Annapolis on Saturday to compete in the Maryland Regional SeaPerch Challenge.

The challenge was held at Rickover Hall at the United States Naval Academy, and pitted dozens of teams against one another to compete with their SeaPerches to advance to nationals.

A SeaPerch is a submersible, remote-controlled vehicle made of PVC pipe and floatation tubes that, when properly calibrated, can maneuver in the water. The two teams sent by Mount de Sales were Team Edgar and Team Perch of Glory, based on the names of their SeaPerches.

The day had several events for competitors, including a math challenge and a section where academy midshipmen discussed the SeaPerch design features with team members. 

Then it was off to the tank - a long, thin pool where most of the action took place. Teams were timed as they steered their SeaPerches across the tank and through hoops. 

Team Edgar placed in the top 10 at the event and was invited to participate in the National SeaPerch Challenge in May at the University of Southern Mississippi in Hattiesburg.