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

Skowhegan Area High School student Ben Warrell, 16, works on Friday with an aquaponics system in the new geodesic dome greenhouse at the Marti Stevens Learning Center in Skowhegan.

Barry Robinson, left, hauls a wagon of soil to the geodesic dome greenhouse Friday as classmate Ben Warrell washes up after class at the Marti Stevens Learning Center in Skowhegan.

Barry Sites, director of the Marti Stevens Learning Center in Skowhegan, walks through the new geodesic greenhouse dome Friday.

Ben Warrell, 16, appears through the plastic of the geodesic dome greenhouse Friday at the Marti Stevens Learning Center in Skowhegan.

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

Goldfish swim in a bin of water to provide nutrients to the aquaponics system Friday at the Marti Stevens Learning Center in Skowhegan.

Barry Robinson, 16, left, and Ben Warrell, 16, set up an aquaponics system Friday inside the newly erected geodesic dome greenhouse at the Marti Stevens Learning Center in Skowhegan.

Skowhegan Area High School students from left to right, Travis Belyea, 17, Barry Robinson, 16, and Anthony Croce, 16, pack cinder blocks with soil to plant flowers and vegetables in around the newly constructed geodesic dome greenhouse at the Marti Stevens Learning Center in Skowhegan on Friday.