How does a glider work? How does a glider sample the ocean? Watch the videos above to see how a glider buoyancy pump engine works, and how it moves through the ocean in a zig-zag pattern to collect data.Check out the other Ocean Robot Test Tank VideosVideo 1: Join the Mission to Fly an Ocean RobotVideo 2: What’s inside an Ocean Robot?Video 3: How does a glider work?Video 4: How do you ballast an Ocean Robot? This video is part of the 2022 4-H STEM Challenge: Explorers of the Deep, developed by Rutgers University. You can find out more about the challenge, including how to download the youth and facilitator guides, on the Explorers of the Deep page.