М. М. Кутепова The World of Chemistry Мир

Read the text again and say if the following statements are true (T) or false (F):

1. 
   We can infer that physics is a fundamental branch of knowledge.
   
2. 
   In paragraph 2, the study of energy is said to be a part of chemistry.
   
3. 
   The author writes that every animate and inanimate thing in the
   universe is governed by general principles.
   
4. 
   According to the author, even though there are unsolved secrets in
   nature, principles govern these secrets.
   
5. 
   The author believes that if chemists “advance the frontiers of knowl-
   edge”, they will “contribute to the well-being of humanity”.
   
6. 
   To truly enjoy nature, the author thinks, we must have some knowl-
   edge of chemistry.
   
7. 
   If you are studying to become a veterinarian (a doctor for animals),
   you will have to take courses in chemistry.
   

14. 
    Read the text once again and entitle its
    paragraphs.
    
15. 
    Write out a) key words out of each para-
    graph; b) the sentences expressing the
    main idea(s) of each paragraph.
    
16. 
    Retell the text briefly in your own words
    making use of the key words and the sen-
    tences you’ve written out.
    
17. 
    Look at the portrait of a famous scien-
    tist. You certainly know who he is. Share
    the information you have with your fellow
    students.
    

19 Read the following text about this scientist and make notes on his personal information: first name, family name, date and place of birth, occupation, qualification, nationality, etc.

Dmitry Ivanovich Mendeleyev was born in Tobolsk in 1834. In 1850 he entered the Pedagogical Institute in St. Petersburg to study chemistry. Five years later he graduated from it with a gold medal and was invited to lecture on theoretical and organic chemistry at Petersburg University.
Then, in 1859, he was sent to Germany to continue his education. When he was living abroad, he made a number of important investigations.
The year 1868 was the beginning of his highly important work Fundamentals of Chemistry. When Mendeleyev was working on the subject, he analysed an enormous amount of literature, and made thousands of experiments and calculations. This tremendous work resulted in the Periodic Table of the Elements consisting of vertical groups and horizontal periods.
Thanks to his investigations Me.ndeleyev was able to predict not only the existence of a few unknown elements but their properties as well.
D. I. Mendeleyev was engaged not only in the study of chemistry. He combined theory with practical activity and carried out enormous research in coal, petroleum, iron and steel industries in Russia. Mendeleyev died in 1907 at the age of 73.

20.