Ключевые слова: background, biology, biotechnology, bottle, carefully, caucasian, chemical, chemical ware, chemist, chemistry, class, coat, danger, discovery, education, equipment, experiment, flask, glass, happy, interest, isolated, knowledge, lab, laboratory, learning, male, medical, medicine, people, person, pharmacy, protection, reagent, research, researcher, school, science, scientific, set, smell, sniff, study, test, white, working,