Keywords
40s, boy, caucasian, chemistry, child, children, class, classroom, college, concentrating, concentration, desk, education, experiment, female, forties, four people, girl, group, happy, horizontal, indoors, inside, lab, lab coat, laboratory, learning, listening, making notes, male, mid age, middle aged, people, person, pupil, science, secondary school, sitting, smiling, student, study, studying, taking notes, teacher, teen, teenage, teenager, test tube, together, tutor, tutorial, uniform, white coat, young, 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, u18118064