Read the text and answer the questions. I. My native town

Read the text and answer the questions.

VIII. Outstanding people (Mendeleev)

Dmitriy Ivanovich Mendeleev, the great Russian scientist, was born in Tobolsk in 1834. After finishing school at the age of 16 he entered the Pedagogical Institute in Petersburg to study chemistry. In 1855 he graduated from the Institute with a gold medal. He was invited to give a course of lectures on theoretical, organic and technological chemistry at Petersburg University.

To continue his study and research Mendeleev was sent to Germany in 1859. In 1866 Mendeleev became a professor of chemistry at the University.

In 1868 Mendeleev began his highly important work “Fundamentals of Chemistry”. When working at the subject Mendeleev analyzed an enormous amount of literature, made thousands of experiments and calculations. He made an important observation: he could arrange elements according to a definite system. The result of this work was the table of Elements which was published in 1869. The main idea of the Periodic System is the idea of periodic repetition of properties with the increase of the atomic weights.

His Periodic Law opened a new era in the history of chemistry.

Mendeleev also carried out enormous research in coal, petroleum, iron and steel industries in Russia. Mendeleev also investigated the atmosphere. He wrote over 350 scientific works which deal with many subjects. Mendeleev was elected a member of many academies abroad.

He died in February 1907 at the age of 73.

1. 
   When and where was D.I.Mendeleev born?
   
2. 
   How old was Mendeleev when he entered the Pedagogical Institute?
   
3. 
   Where was he invited after graduation from the Institute?
   
4. 
   Where was he sent in 1859?
   
5. 
   What is his one of very important books?
   
6. 
   What is the main idea of the Periodic system?
   
7. 
   Which year was it published?
   
8. 
   What other research did Mendeleev carry out?
   
9. 
   How many works did he write?
   
10. 
    When did he die?