Ключевые слова: beaker, boy, chalkboard, chemistry, child, childhood, class, classroom, cute, development, education, educational, elementary, elementary school, eye glasses, glasses, holding, indoors, intelligent, knowledge, lab, lab coat, laboratory, learn, learning, lesson, looking at camera, male, mixedrace, portrait, research, researcher, school, schoolboy, science, scientific, scientist, spectacles, standing, student, study, studying, test,