Stock photography, photos: chem lab Stock photos of High school two boys wearing protective gear in science class Photograph: © Bill Bachmann Click for a larger image and more information Keywords associated with this stock photo: microscope, science, scientist, school, high school, education, learn, learning, class, classroom, laboratory, lab, biology, anatomy, chemistry, student, students, study, experiment, sample, test tube, flask, heat, hot, flame, bunsen, burner, chem