Travis Belyea, 17, waters pansies Friday inside the new geodesic dome greenhouse at the Marti Stevens Learning Center in Skowhegan.

Skowhegan Area High School students from left to right, Belyea, Barry Robinson, 16, and Anthony Croce, 16, pack cinder blocks with soil to plant flowers and vegetables in around the newly constructed geodesic dome.

Barry Robinson, left, hauls a wagon of soil to the geodesic dome greenhouse as classmate Ben Warrell washes up after class.

Robinson, 16, left, and Warrell, 16, set up an aquaponics system.

Skowhegan Area High School student Warrell works with an aquaponics system in the new geodesic dome.

Water flows through the aquaponics system at the Marti Stevens Learning Center in Skowhegan.

Barry Sites, director of the Marti Stevens Learning Center, walks through greenhouse.

Goldfish swim in a bin of water to provide nutrients to the aquaponics system.

Warrell appears through the plastic of the geodesic dome.