Ключевые слова: activity, adolescent, adult, beaker, books, boy, campus, chemical, chemist, chemistry, class, classmate, communication, course, curriculum, education, elementary, equipment, experiment, flask, girl, group, homework, institution, knowledge, laboratory, learn, lesson, model, modern, people, pupil, scholastic, school, science, seminar, skill, stand, student, study, studying, teacher, teaching, teenager, workshop,