ACTIVATE Look at the information about the average precipitation and temperature in Oxford.
Draw two weather charts like the ones in exercise 3 to show the information.
Jan Feb Mar Apr May June July Aug Sep Oct Nov Dec
precipitation (mm) 523 410 417 43.3 SLS 545 611 593 609 655 620 554
temperature C 3.7 42 5.8 8.4 L7 149 16.6 16.2 13.8 101 64 44​

This summer I went with my parents for a vacation in Sochi . On arrival in the city I immediately struck by subtropical plants . Huge cypress trees like the poplar , but surprised their uniqueness . Fir trees , palms and other lush exotic trees and shrubs were my first sight of Sochi .The first day we went to the Black Sea and then went there every day . Swimming, sunbathing , built castles . I jumped from the water slides so that the breath away ! But most of all I remember the first meeting with the sea. Walking barefoot on the hot pebbles , I flopped into a big foamy waves ! I was in weightlessness and stood on his feet far beyond the point where jumped into the water . Truth be told that the sea - a great power !Once Sochi is in the mountains as in the bowl. Mountains are very close and beckon to him . However, to go there we could not . But we went to the Dolphinarium .
The dolphins I really liked it . Large fur seals , sea lions and walruses just seemed sluggish . They are very active and fun to play with balls and catch fishes owed ​​to them as a reward . A quick and nimble dolphins and toothed whales beluga jumps from a springboard . They were very cheerful and friendly , they can be ironed. We took pictures with them .

 1. Dmitri Mendeleev developed the concept of the periodic repetition of properties.
2. There are 8 columns in the periodic table. In each column, elements are arranged by the same properties, such as the same orbital arrangement of electrons.
3. Mendeleev predicted properties of yet undiscovered (missing) elements and left empty spaces for them in the table.
4. There are natural groupings between the elements that are closely related to each other.
5. In order to understand better these natural groupings, chemists have tried to fit the elements into a single plan.
6. John Ncwlands made one of the first attempts to fit the relationships among the elements by suggesting the Law of Octaves.