Keywords
16-17 years, 3, 40's, 40-45, 40-50, 40s, 45-50, 50-55, 50-60, 55-59 years, 55-60, adult, asian, asian ethnicity, boy, caucasian, chemistry, chemistry class, child, chinese ethnicity, classmate, color, color image, colour, concentrating, concentration, counseling, defending, device, educating, education, educator, examining, eyeing, far eastern, female, fifties, fifty, focusing, focussing, forties, forty, gal, girl, glove, guidance, head & shoulders, head and shoulders, high angle, high angle view, high school, high-school, highschool, holding, human, human being, indoor, indoors, inside, instructing, juvenile, kid, knowledge, lab, lab coat, laboratory, lady, learning, looking, looking down, magnification, magnifier, mature adult, mature women, microscope, mid life, middle age, middle aged, middle-age, middle-aged, minor, mixed race, mixed race person, multi-ethnic group, multicultural, multiculturalism, obscured face, observing, oriental, people, person, photography, protection, pupil, r&d, research, research & development, research and development, rubber glove, rubber-glove, safeguard, safety, school, schoolmate, science, scientific experiment, scrutinizing, seated, security, seeing, serious, seriousness, sitting, solemn, somber, standing, student, studying, teacher, teaching, teen, teenage, teenage boy, teenage boys, teenage girl, teenage girls, teenager, three, three people, three quarter length, three-quarter length, together, togetherness, vertical, viewing, watching, western european, white coat, woman, women, young, youth, youthful, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, bld119708