Ключевые слова: accuracy, alarm, analysing, analytic, awake, background, black, board, chemist, clock, concept, conceptual, copy space, count, countdown, counter, deadline, equipment, everyday, extract, flask, flip, glasses, glassware, hours, instrument, liquid, mechanical, medicals, minute, modern, object, pharmacy, research, science, scientist, score, signs, stopwatch, test, time, time passing, timer, watch,