Keywords
chemistry, chemistry lesson, demonstration, education, eye glasses, flask, glass, interior, laboratory, laboratory apparatus, learning, lesson, liquid, mixed race person, one person, pouring, pupil, safety glasses, school science, science education, scientific education, side view, student, study, teenage boys, teenager, top section, white boat, 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, u24609114