Keywords
4-5 years, boy, child, classroom, close-up, color image, concentration, cropped, day, discovery, education, elementary school, elementary student, experiment, front view, funnel, glass, head and shoulders, indoors, liquid, looking, looking up, northern european ethnicity, observation, observing, one boy only, one person, pouring, school, science, selective focus, test tube, test tube rack, transferring, 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, paa567000073