Ключевые слова: academic, attentively, back to school, blue, boy, caucasian, chemical, chemistry, child, childhood, class, classroom, concentrated, concentrating, costume, cute, desk, development, dressing up, early learning, education, elementary, elementary school, experiment, focused, formula, geek, imagination, knowledge, lab coat, learn, learning, lesson, make believe, male, medical, medicine, microscope, nerd, playing, preschool, pretending, pupil, reading glasses, school, schoolchild, science, scientist, serious, structure, teacher, thoughtful,