Ключевые слова: academic, back, biochemist, biochemistry, biotechnology, chemical, chemist, chemistry, class, classroom, discovery, doctor, education, exam, examining, experiment, experimenting, flask, fluid, glass, glassware, lab, laboratory, learning, lesson, liquid, man, preparing, research, researcher, sample, school, science, scientific, scientist, solution, student, studying, substance, taking, test, testing, to, trainee, training, tube, tubing, university, vaccine, virus,