Richard Price-Sanchez, 17, of Philadelphia takes advantage of a picnic table to get a high view of the surroundings as Chewonki science students map the plant life on the dunes at Popham Beach. Gordon Chibroski/Staff Photographer
Charlotte Haiken and Emily Conn write in their journals on Popham Beach. Gordon Chibroski/Staff Photographer
Dixie Marr, 17, of Newton, Mass., maps the area between the beach and the parking area. Gordon Chibroski/Staff Photographer
Callie Sofis-Scheft shows her journal with mapped plants to her teacher. Gordon Chibroski/Staff Photographer
Chewonki science teacher James Kary, left, helps student Nick Kaashoet of Lexington, Mass., identify a plant along the trail to the beach. Gordon Chibroski/Staff Photographer
Sterling Dintersmith, left, of DeWitt, N.Y., is inspired by science teacher Peter Sniffen as they study a plant. Gordon Chibroski/Staff Photographer
Nick Kaashoet of Lexington, Mass., takes a closer look at the seed structure to identify a plant. Gordon Chibroski/Staff Photographer
Madeline Vinh, 17, of Seattle explores the maggots living inside a gall from a salt spray rose plant. Gordon Chibroski/Staff Photographer
Charlotte Haiken, left, of New York City writes in her journal while Kibriyaaa Morgan of Brooklynn, N.Y., and Emily Conn observe the characteristics of a pine tree. Gordon Chibroski/Staff Photographer
Peter Chapman of West Hartford, Conn., pops a wasp maggot found in a gall into this mouth. Chibroski/Staff Photographer
Outdoors 
