Reading and Making Maps
THEME-1: Diversity on the Earth
What is a MAP ?
- It is a representation of the earth’s features drawn on a flat surface
- Uses symbols and colours to represent features of an area, simplifying the real world
What is a Sketch map ?
- A map drawn from observation rather than from exact measurements and representing the main features of an area.
- It is a statement of relationship between distances on a map and distances in real life
- We use Scale for showing the actual distance on the ground in a reduced manner on a map
- A scale of 1 : 50 000 is used on many Survey maps. This means that 1 cm on the map represents an actual distance of 50 000 cm (or 500 m or 0.5 km)
- Maps always mention the Scale they use and we can find out the actual distances between places using the Scale.
- Example: Distance between Srikakulam and Tekkali is given in the form of a line. The actual distance between these places is 50km