Ключевые слова: adult, alchemist, analysis, background, beaker, biology, books, chemical, chemist, chemistry, coat, crazy, discovery, dna, doctor, education, equipment, experiment, flask, formula, funny, glass, glasses, goggles, humor, inventor, lab, laboratory, liquid, mad, magic, male, man, medical, medicine, microscope, old, person, professor, reaction, research, scared, science, scientific, scientist, steam, study, test, tube, tubing,