Keywords
14-15 years, 16-17 years, 2, adolescent, african, african american, african ethnicity, african-american, afro american, afro-american, atom, black, boy, buddy, caucasian, chemical, chemistry, child, childhood, children, chum, class, classmate, close up, close-up, closeup, color, color image, colour, companion, companionship, comrade, cooperation, education, experimentation, experimenting, fellow, female, friend, friendship, front view, gal, girl, holding, human, human being, indoor, indoors, inside, instruction, juvenile, kid, knowledge, lab, laboratory, lad, learning, liquid, male, minor, mixed race person, molecular structure, molecule, multi-ethnic group, of african descent, pal, particle, people, person, photography, physics, pupil, relationship, research, researching, schoolmate, science, student, studying, teaching, teen, teenage, teenager, test tube, together, togetherness, tutoring, two, two people, vertical, waist up, waist-up, western european, wet, young, youngster, 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, bld051353