1. Geography lesson is the only one lesson in school that let to know everything about our planet. From what countries it consists our Earth, how many people live in the world, what is mountain, river, lake, soil, ocean, sea and other. Outline maps, globe, discoveries of pioneers the Earths help us to know everything about our geo. 2. The world consists of 6 continents with 251 countries in it. 3. Maps helps to orient and remember the countries when you look at it. 4. Russia is the biggest country in the world, that\'s why the climate is very different in cities. It\'s warm in South and cold in Siberia. So you can feel the same weather in different parts in the Earth based on the distance from the equator.