Keywords
16-17 years, 18-19 years, 20's, 20-25, 20-30, 20s, 25-29 years, 25-30, 4, adult, african, african american, african ethnicity, african-american, african-american ethnicity, afro american, afro-american, arm, arms raised, asian, asian ethnicity, black, caucasian, chemistry, chemistry class, child, chinese ethnicity, class, classmate, classroom, college, color, color image, colour, communicating, discussing, discussion, education, equation, examining, explaining, eyeing, far eastern, fellow, female, fob, formula, four, four people, gal, gentleman, girl, guy, head & shoulders, head and shoulders, horizontal, human, human being, indoor, indoors, information, inside, instructing, intelligence, juvenile, kid, knowledge, lady, learning, looking, male, man, minor, mixed race, mixed race person, multi-ethnic group, multicultural, multiculturalism, observing, of african descent, oriental, people, person, photography, pupil, raised, raising, school, schoolmate, schoolroom, science, seeing, speaking, standing, student, studying, talking, teen, teenage, teenage girl, teenage girls, teenager, together, togetherness, tuition, twenties, twenty, university, viewing, waist up, waist-up, watching, western european, whiteboard, wisdom, woman, women, young, young adult, young men, young women, 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, bld200319