Ключевые слова: academic, analyzing, attentive, back to school, beaker, blonde hair, boy, boys, casual clothing, caucasian, caucasian ethnicity, chemical, child, childhood, class, classroom, concentration, discovery, education, elementary, elementary school, experiment, experimentation, female, flasks, four people, girl, girls, holding, innocence, intelligence, kids, knowledge, laboratory, learn, learning, lifestyle, looking, male, mixedrace, mixedrace person, practice, primary, protection, protective eyewear, research, school, schoolboy, schoolchild, schoolgirl, science, scrutiny, student, study, studying, test tube, test tube rack, together,