These DAV Class 6 SST Notes and DAV Class 6 SST Chapter 2 Notes – Representation of the Earth hold significant importance as study material for students.
Representation of the Earth Class 6 DAV Notes
→ The photographs of the earth taken from the space make it clear that it (earth) is spherical in shape, it has been represented in different ways. The most popular ones are the representation with the help of a globe and a map.
→ A globe represents the three-dimensional view of the earth. It shows the shape of the oceans and the continents correctly. It helps us to understand how day and night occur and how seasons are caused. But a globe cannot be used if we want to study a specific part of the earth.
→ A map is a representation of the earth oi a part of it, drawn on a flat surface as per the scale. It does not give us an idea of the true shape of the earth. But it is useful for showing large areas as well as very small areas.
→ The main components of the map are scale, direction, symbols and colour scheme. They help us to read or interpret a map.
→ On the basis of scale, maps are categorised as large scale maps and small scale maps. A small area such as a town is represented on a large scale map. On the other hand, a large area such as a continent is represented on a small scale map.
→ Maps are of different types such as thematic maps, physical maps, political maps, cultural maps, historical maps and land utilisation maps.
→ A plan is a layout of a very small area. It is drawn on a comparatively large scale and shows directions.
→ Globe: A model showing the accurate shape of the earth.
→ Map: A representation of the earth or a part of it, drawn on a flat surface as per the scale.
→ Three-dimensional : An object that has height, width and depth.
→ Two-dimensional: An object with length and width.
→ Cartography: The science or map-making.
→ Scale: The ratio of distance between two points on a map with the actual distance between the same points on the ground.
→ Direction: Indicator of the location and position of the places in relation to each other.
→ Thematic map; A map representing a particular theme or feature.
→ Political map: A map showing cities, towns, states and countries of the world.
→ Physical map: A map representing relief features like mountains, plains, plateaus, etc.
→ Atlas: A collection of maps or the world, the continents and selected countries.
→ Plan: A layout of very small area.