Here's a brief overview of the competition:
Science Olympiad is a team-based science competition with events ranging from so-called "study events" to "lab events" to the menacing "build events." Robot Arm was one of these "build events." The event consisted of building a Remote Controlled Robotic Arm to pick up as many objects and place them in containers made out of half gallon milk jugs to score as many points as possible during a 3 minute period of time.
This robot arm is clearly not the most sophisticated or most complicated robot arm ever made, but it gets the job done, while recycling parts, learning about Remote Control systems, and using common (and cheap!) building materials with a few motors to make a functional robot arm to pick up and move things around.