Ключевые слова: academic, atom, chemical, chemist, chemistry, class, classroom, course, desk, discovery, education, exam, experiment, experimenting, fluid, glass, graduate, graduation, high, lab, laboratory, learning, lesson, liquid, man, model, molecular, molecule, physicist, physics, preparation, preparing, research, school, science, scientific, scientist, solution, student, study, studying, substance, teacher, teaching, test, trainee, training, tube, tubes, university,