Ключевые слова: academic, adventure, background, boy, caucasian, chemistry, child, childhood, children, class, classmates, classroom, concentrated, concentrating, concentration, concept, cute, development, discovery, doing, education, environment, experiment, experiments, exploration, female, formula, girl, glass, hands, kid, kids, lab, laboratory, learn, learning, lifestyle, looking, mask, microscope, preschool, protective, research, robe, school, science, scientist, teacher, testtube, watch,