Ключевые слова: aqua, beard, blackboard, bow tie, cheerful, chemistry, classic, demonstrating, discovering, discovery, eccentric, elderly, enthusiastic, equipment, experiment, expert, frizzy, glasses, glassware, green, happy, helping, humor, ideas, inspiration, instructing, lab, lab coat, learning, mad, man, mature, measuring, messy hair, occupation, person, pointer, pouring, professional, professor, research, round glasses, rubber gloves, science, scientist, senior, sitting, smiling, stereotype, table, teaching, vintage, white,