Read the text and put a, an, the or – in each gap. a) archimedes in his bath do you remember the story of scientist archimedes? he was trying to solve in – how to show if the king’s crown was made of gold or not. he thought and thought, but he could not find the answer. so he stopped worrying and had bath instead. suddenly, answer came to his mind. he was so excited that he jumped out of his bath, naked, and ran 68 down the street shouting, ‘i’ve found it! ’ actually, what he said in ancient greek was ‘eureka! ’ we still use this word in when we suddenly find answer to a problem. b) einstein on the tram albert einstein had first idea about theory of relativity when he was traveling home from work on the tram in geneva. c) the scientist who saw the solution on a bus the chemist ‘kekule’ is famous for having discovered a lot about how atoms and molecules are arranged. first discovery happened when he was riding on a bus, one evening in about 1855, thinking about other things. suddenly, he saw atoms dancing before his eyes. then one atom joined another one to make chain. when he got off the bus he understood how atoms join together to make molecules. 3. fill in the gaps with the, a, or –. underline the correct word. __ scientists do __ lot of __ research in order to find __ cues for various diseases. __ lot of money is/are spent on equipment every year, but information collected is/are invaluable.

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