Надо вставить слова в текст: recorded discarded performed controlled accepted formulated replicated modified ignored tested advances in scientific knowledge depend on all scientists following a strict procedure. firstly, a theory is (1) in such a way that it can be empirically (2) . experiments are (3) …… under carefully (4) conditions which can be (5) …… by other scientists. the results must be precisely observed and accurately (6) …… . if the results contradict the theory in any way, the theory must be ( or at least (8) …… to take account of the results. in no circumstances can the result be (9) …… . experimental evidence may support a theory but many advances are made when observations disprove current theory. in science, something is a fact or a law if it conforms to all the results we have at any time, but history shows us that what is (10) as fact or as a law in one generation may not be so by the next.