1. In chemistry class studied various substances and their interactions.
2. Chemistry is divided into 2 General parts - organic and inorganic.
3. Organic chemistry studies fats, proteins, and carbohydrates.
4. Biochemistry — the science of the chemical composition of living cells and organisms, as well as the underlying chemical processes.
5. Dmitry Mendeleev Russian scientist who created the periodic table of elements.
6. the properties of chemical elements depend on the atomic number.
7. A chemical reaction is the interaction of two or more substances.
8. It depends on the physical state of body: solid body, liquid and gas.
Russia is a great country and only the lazy one does not know the history of its origin, development and formation. It covers an area of about 17 million kilometers. The country is located in the Northern Hemisphere and most of the continent of Eurasia belongs to it. Russia has common borders with eighteen countries, including by sea. At sea, we border the USA and Japan.
In Russia, a large number of reservoirs, rivers, lakes. If we talk about quantity, then this figure will be about 2.8 million rivers. The largest rivers flowing through the territory of Russia are the Volga, Yenisei, Don, Ob, and Lena. And only in our country is there the cleanest lake and the deepest on earth - Lake Baikal. In Russia, there is the largest sea in the world - the Caspian Sea.
The capital of Russia is Moscow, it has developed infrastructure, a city that is rich in its history.
The country has a large number of megacities. In them, the population exceeds one million people.
Russia is a country in which a large number of nationalities coexist peacefully. The approximate number is 160 nationalities. Each nationality professes its religion. Therefore, in Russia you can meet Christians, Muslims, Buddhists, Jews and many more different religions.
The country includes autonomous republics (22), territories (9).
Russian is the state language of the country.
The flag of Russia - three colors: white, blue and red. The double-headed eagle, which looks to the west and east, majestically sits on the coat of arms of Russia.
In Russia there are places that are included in the heritage of UNESCO. And they are not enough. You can highlight the Red Square, the Monuments of Novgorod, wooden churches built in Kizhi, the St. Petersburg Historical Center.
1. He pushed with the beak eggs walls.
2. Finally the shell has broken, and Roy was born.
3. He was brown, not black-white.
4. He's mother tried еo pick brown color, but she could not.
5. She has poured out a jug of honey on Roy.
6. She has called a polar bear to lick him.
7. They thought about washing up Roy with the snow.
8. Roy was all equally brown.
9. Then they have gone to an owl.
10. The owl said: " Roy should grow up and after that he will be black and white, like other penguins"