Keywords
13 to 15 years, 35 to 39 years, accuracy, adolescent, adult, amusement, blond, blur, brunette, caucasian ethnicity, class, classmate, classroom, color, companion, dark hair, day, desk, differential focus, droplet, dropping, eager, educate, educating, education, enjoyment, excitement, fair, female, focus, focus on foreground, focus techniques, formula, friendship, fun, furnishing, group, group of people, hair, hair color, hairstyle, intelligence, juvenile, lab coat, learning, lesson, liquid, long hair, looking, looking away, looking down, mid adult, mid adult woman, physics, pleasure, protective clothing, puberty, pupil, school, school student, schoolgirl, science, shallow focus, small group of people, smart, stand, standing, stands, student, synergy, teacher, team, teamwork, teenage girl, teenager, test tube, test tube holder, three people, trio, white, woman, youngster, youths, 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, is09a861x