Keywords
adolescence, bunsen burner, caucasians, chemical, chemistry, classroom, desk, education, experiment, gauze, happiness, high school student, image source, indoors, intelligence, learning, lesson, liquid, looking, male, one person, one teenage boy, protection, safety, safety goggles, school, school uniform, schoolboy, secondary school, smiling, teenage boy, teenager, tripod, volumetric flask, youth, 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, ie371-031, ie371 031, ie371031