Keywords
anticipation, both-male-and-female, boy, care, casual-clothing, caucasian-ethnicity, child, childhood, classroom, concentration, cooperation, desk, development, differential-focus, discovery, education, elementary-school, elementary-school-student, england, experiment, female, girl, head-and-shoulders, health-and-safety, indoors, learning, lesson, london, male, only-children, pouring, safety-goggles, schoolboy, schoolgirl, science, side-view, teamwork, test-tube, togetherness, two-people, united-kingdom, wearing, 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, u16093012