Ключевые слова: chair, chemical, chemistry, child, children, class, classroom, crowd, day, development, education, event, exhibition, experiment, female, fire, flame, fun, group, hall, happy, innovation, kid, kids, knowledge, learning, looking, male, man, people, person, professional, research, school, science, scientist, show, sitting, smart, smile, student, students, study, support, teacher, teaching, together, white, young, youth,