Ключевые слова: background, beaker, biochemistry, blood, chemical, chemist, chemistry, closeup, compound, crazy, dangerous, dirty, dropper, dumb, experiment, expert, explosion, flask, foolish, glass, glassware, goofy, jar, lab, laboratory, liquid, lunatic, mad, messy, person, pipet, pipette, research, researcher, ridiculous, sample, science, scientific, scientist, serum, silly, specialist, studio, stupid, substance, test, toxic, tube, wacky, woman,