Exercise III. Underline the correct item and translate the sentences:
1. He appeared at the laboratory after an absence/existence of several weeks.
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2. The number of visitors increased/decreased from 210 to 160 this year.
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3. I identified/recognized him as soon as he came in the room.
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4. You must learn how to construct/builda logical argument.
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5. The books are arranged/organized alphabetically by author.
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Exercise IV. Find English equivalents for the following Ukrainian word combinations:
| 1. îòîòîæíþâàòè åëåìåíòè | a) predict properties |
| 2. â³äêðèâàòè çàêîí | b) identify elements |
| 3. âèÿâëÿòè ôàêò | c) discover law |
| 4. ðîáèòè âèñíîâîê | d) reveal fact |
| 5. çíàòè òåíäåíö³¿ | e) make conclusion |
| 6. ïåðåäáà÷àòè âëàñòèâîñò³ | f) know trends |
| 1. | 2. | 3. | 4. | 5. | 6. |
Exercise V. Answer the following questions to check your understanding of the text:
1. When did chemists begin to identify elements and study their properties?
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2. When did Mendeleev publish his Periodic Table of Elements?
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3. What did Mendeleev notice?
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4. How does the Periodic Law read?
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5. What is the value of Periodic Table?
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