FIRST Lego League (FLL) is a LEGO robotics competition in which middle-school students work as a team to build and program an autonomous robot using LEGO Mindstorms which will compete against robots from other schools at a regional competition. In addition to the robotics portion of the competition, teams also earn points for a research project and presentation. This year’s theme is all about HydroDynamics and learn all about water – how we find, transport, use, or dispose of it..