Scientific studies
HANSCOM AFB, Mass. – Hanscom Primary School first grade students, from left, Kayleigh Daniel, Rebekah Murray, Nathan Hamill, and Juliette Gordon explore the shoreline at Fourth Cliff Recreation area in Humarock, Mass., during a recent field trip. The trip was part of a first grade science unit on habitats. (U.S. Air Force photo by Lt. Col. Loralee Manas)