Keywords
20's, 20-24 years, 20-25, 20-30, 20s, 25-30, accessory, adult, caucasian, chemistry, chemistry class, class, classroom, close up, close-up, closeup, college, color, color image, colour, concentrating, concentration, considering, contemplation, curiosity, curious, defending, discovery, education, fellow, focusing, focussing, front view, gentleman, goggles, guy, head & shoulders, head and shoulders, horizontal, human, human being, indoor, indoors, information, inside, instructing, instruction, intelligence, interest, knowledge, lab, lab coat, laboratory, learning, looking down, low angle, low angle view, male, man, observing, one, one person, people, person, photography, pondering, protection, protective eyewear, pupil, research, safeguard, safety, school, schoolroom, science, science class, scientific experiment, security, selective focus, serious, seriousness, solemn, somber, spectating, spectator, standing, student, studying, teaching, thinker, thinking, tuition, tutoring, twenties, twenty, university, viewing, watching, western european, white coat, wisdom, young adult, young men, 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, blm016668