Exploring Society: India and Beyond | Notes, Solutions & Worksheet
Class 6 Social Science Chapter 1 Locating Places on the Earth from Exploring Society: India and Beyond – easy notes, concepts, NCERT book solutions, important questions and worksheet. Learn about maps, globes, directions, latitudes, longitudes and locating places on Earth in simple language.Meta Keywords:
Class VI Social Science
Chapter 1: Locating Places on the Earth
Fresh Notes and Book Solutions
1. What is a Map?
A map is a drawing or representation of a part of Earth’s surface as seen from above.
Maps can show very small areas, such as a school or neighbourhood, or very large areas, such as a country or the whole world.
A useful map should help us understand where places and features are located in relation to one another.
2. The Three Important Components of a Map
Distance
Maps are much smaller than the real places they represent. A scale tells us how a distance measured on a map corresponds to the actual distance on the ground.
If 1 cm on a map represents 500 metres on the ground, then 4 cm on that map represents 2 km in reality.
Direction
Directions tell us where one place lies in relation to another. The four main directions are:
- North
- South
- East
- West
There are also intermediate directions: North-East, South-East, South-West and North-West.
Symbols
Maps use simple symbols instead of drawing every object exactly as it appears in reality.
For example, a particular symbol may represent a railway line, road, river, hospital or place of worship.
The explanation of map symbols is given in the legend or key.
3. Directions on a Map
Main and intermediate directions
4. Types of Maps
| Type of Map | What it Shows |
|---|---|
| Physical Map | Natural features such as mountains, rivers, plateaus, oceans and plains. |
| Political Map | Countries, states, boundaries, cities and other administrative divisions. |
| Thematic Map | One particular type of information, such as rainfall, population or crops. |
5. Why Do Maps Use Symbols and Colours?
A real road, railway line or river cannot be drawn on a small map exactly as it appears on the ground.
Symbols and colours solve this problem. They allow many features to be represented clearly in a small space.
- They save space.
- They make maps easier to read.
- They allow many features to be shown together.
- They help users understand information quickly.
- Standard symbols make maps easier for different people to understand.
6. The Globe
A globe is a small model of Earth. It is approximately spherical in shape and gives us a more realistic idea of Earth’s shape than a flat map.
A globe can show continents, oceans, countries and the imaginary lines used to locate places.
7. The Equator
The Equator is an imaginary circle around the middle of Earth.
It is marked as 0° latitude.
The Equator divides Earth into two halves:
- Northern Hemisphere
- Southern Hemisphere
8. Latitudes
Latitudes are imaginary lines drawn around Earth parallel to the Equator.
They run generally from east to west and help us measure how far a place is north or south of the Equator.
Latitude is measured in degrees. For example: 20°N means 20 degrees north of the Equator, while 20°S means 20 degrees south.
9. Longitudes or Meridians
Longitudes, also called meridians, are imaginary lines running from the North Pole to the South Pole.
They help us measure how far a place lies east or west of the Prime Meridian.
Longitudes are also measured in degrees.
10. Prime Meridian
The Prime Meridian is the line of 0° longitude.
The internationally accepted Prime Meridian passes through Greenwich in London.
Longitudes to its east are written as E and those to its west as W.
11. Latitude and Longitude Together
Latitude and longitude work together like a giant address system for Earth.
The network formed by these imaginary lines is called a grid.
A location can be identified using its latitude and longitude. Such values are called its coordinates.
A place at 25°N, 75°E lies north of the Equator and east of the Prime Meridian.
12. Hemispheres
A hemisphere means one half of a sphere. Earth can be divided in two important ways.
| Division | Two Hemispheres |
|---|---|
| By the Equator | Northern Hemisphere and Southern Hemisphere |
| By the Prime Meridian and opposite meridian | Eastern Hemisphere and Western Hemisphere |
13. Scale and Measuring Distance
The scale of a map connects a small map distance with the actual distance on Earth.
Suppose 2.5 cm on a map represents 500 km.
If the measured map distance is 10 cm:
10 ÷ 2.5 = 4
4 × 500 = 2,000 km
14. Local Time
The apparent position of the Sun changes as Earth rotates. Therefore, the local solar time is not exactly the same at every longitude.
Earth turns through approximately 360° in 24 hours.
Therefore:
A difference of 1° longitude corresponds to about 4 minutes.
15. Time Zones
If every place followed its own local solar time, travelling across a large country would make clocks different from place to place.
To make timekeeping convenient, countries and regions adopt a standard time.
A group of places following the same standard time is associated with a time zone.
16. Indian Standard Time
India follows one standard time throughout the country called Indian Standard Time (IST).
IST is based on the 82.5°E meridian.
IST is 5 hours 30 minutes ahead of Greenwich Mean Time (GMT).
When it is 12 noon at Greenwich, the corresponding standard time in India is 5:30 pm.
17. The International Date Line
Near the opposite side of Earth from the Prime Meridian is the approximately 180° longitude.
The International Date Line lies roughly along this longitude, although it bends in places to avoid dividing countries and island groups.
Crossing the International Date Line involves a change in the calendar date.
18. Latitude and Climate
Latitude has an important connection with climate.
- Regions near the Equator generally receive strong sunlight and are hotter.
- Middle latitudes generally have more moderate temperatures.
- Regions near the poles are generally much colder.
This broad pattern happens because the Sun’s rays reach different parts of Earth at different angles.
19. Important Climate Zones
| Zone | General Location | General Climate |
|---|---|---|
| Torrid Zone | Around the Equator | Generally hot |
| Temperate Zones | Middle latitudes | Generally moderate |
| Frigid Zones | Near the poles | Generally cold |
20. Maps in Everyday Life
Maps are useful for much more than finding directions.
- Planning roads and settlements
- Finding routes
- Understanding natural features
- Studying rainfall and climate
- Planning agriculture
- Managing cities and villages
- Supporting trade and transport
- Helping governments in administration
- Understanding relationships between different places
21. Historical Development of Mapping
People have been making maps and using geographical knowledge for thousands of years.
Different civilizations developed their own methods for observing the sky, measuring land and finding directions.
Ancient Indian scholars made important contributions to astronomy and geographical understanding.
The ancient Indian tradition also used Ujjayinī (modern Ujjain) as an important reference meridian in astronomical calculations.
The international agreement to use the Greenwich meridian as the Prime Meridian was reached in 1884.
22. Important Indian Contribution
Indian astronomers carefully observed the movement of celestial objects and developed methods for calculating time and position.
Varāhamihira was one of the important scholars associated with the development of astronomical and geographical knowledge in India.
This reminds us that geographical knowledge has developed through the contributions of many civilizations.
23. Important Terms
| Term | Easy Meaning |
|---|---|
| Map | A representation of an area viewed from above. |
| Atlas | A collection of maps. |
| Scale | The relationship between map distance and actual distance. |
| Equator | The 0° latitude line around the middle of Earth. |
| Latitude | Angular distance north or south of the Equator. |
| Longitude | Angular distance east or west of the Prime Meridian. |
| Meridian | A line of longitude running from pole to pole. |
| Parallel | A line of latitude running parallel to the Equator. |
| Prime Meridian | The 0° longitude line passing through Greenwich. |
| Coordinates | Latitude and longitude values used to locate a place. |
| Hemisphere | One half of Earth or another sphere. |
| Legend or Key | A part of a map explaining its symbols. |
| Local Time | Time based on the position of the Sun at a particular longitude. |
| Standard Time | An officially adopted common time for a region or country. |
| Time Zone | A region using a common standard time. |
| International Date Line | An approximate line near 180° longitude where the calendar date changes. |
| Axis | An imaginary line through Earth’s centre around which it rotates. |
| Poles | The North Pole and South Pole, the two ends of Earth’s axis. |
| Estuary | The place where a river meets the sea. |
| Madhya Rekhā | An ancient Indian reference meridian associated with Ujjayinī. |
24. Let’s Explore
Where does the water in the lake come from?
Who made the road and why?
What could be the activities of people living in the small house? What could be their history? Their future?
25. Book Question and Answer Session
1. Returning to page 10 and to Fig. 5.2 in Chapter 5 of this textbook, taking the scale to be 2.5 cm = 500 km, calculate the real distance from the estuary of the Narmada River to the estuary of the Ganga river. (Hint: round off your measurement on the map to an easy number.)
2.5 cm on the map = 500 km in reality.
If the measured distance is approximately 15 cm:
15 ÷ 2.5 = 6
6 × 500 = 3,000 km
So the approximate real distance is 3,000 km.
2. Why is it 5:30 pm in India when it is 12 pm or noon in London?
3. Why do we need symbols and colours in the map?
4. Delhi’s and Bengaluru’s latitudes are 29°N and 13°N; their longitudes are almost the same, 77°E. How much will be the difference in local time between the two cities?
5. What is the difference between local time and standard time? Discuss it in groups, with each group writing an answer in 100 to 150 words. Compare the answers.
6. Mark the following statements as true or false and explain:
All parallels of latitude have the same length.
False. The Equator is the longest parallel. The other
parallels become shorter as they approach the poles.
The length of a meridian of longitude is half of that of the Equator.
True. A meridian is a semicircle extending from one
pole to the other, while the Equator is a complete great circle.
The South Pole has a latitude of 90°S.
True. The South Pole is located at 90 degrees south
latitude.
In Assam, the local time and the IST are identical.
False. Assam lies considerably east of the Indian
Standard Meridian, so its local solar time is ahead of IST, although
the clocks there follow IST.
Lines separating the time zones are identical with meridians of longitude.
False. Time-zone boundaries do not always follow
meridians. They may bend to follow political or administrative
boundaries.
The Equator is also a parallel of latitude.
True. The Equator is the 0° parallel of latitude.
7. Solve the crossword below.
ACROSS
1. SCALE – Helps represent a large real-world distance on a smaller map.
4. GLOBE – A model of Earth.
5. EQUATOR – The longest parallel of latitude.
6. GREENWICH – The place through which the internationally accepted Prime Meridian passes.
8. MAP – A useful representation for locating places.
10. LATITUDE – Measures angular distance north or south of the Equator.
DOWN
2. LONGITUDE – Measures angular distance east or west of the Prime Meridian.
26. Quick Revision
- A map is a representation of an area viewed from above.
- Scale connects map distance with actual distance.
- Directions help us understand the position of places.
- Symbols and colours make maps easier to read.
- The Equator is 0° latitude.
- The Prime Meridian is 0° longitude.
- Latitudes run parallel to the Equator.
- Longitudes run from pole to pole.
- Latitude and longitude together form a grid.
- Coordinates help identify an exact location.
- Earth rotates approximately 15° in one hour.
- India follows Indian Standard Time.
- IST is 5 hours 30 minutes ahead of GMT.
- The International Date Line lies approximately near 180° longitude.
- Latitude has a broad relationship with climate.
27. Remember These Important Numbers
| Fact | Value |
|---|---|
| Equator | 0° latitude |
| Prime Meridian | 0° longitude |
| South Pole | 90°S |
| North Pole | 90°N |
| Earth’s rotation | Approximately 15° per hour |
| Time difference | Approximately 1 hour for every 15° longitude |
| Indian Standard Meridian | 82.5°E |
| IST difference from GMT | +5 hours 30 minutes |
| International Date Line | Approximately 180° longitude |
28. Learn Through a Simple Example
Imagine Earth as a huge ball and your school as a tiny point on it. Finding that school by looking only at the entire Earth would be difficult.
Latitude tells us how far north or south the school is. Longitude tells us how far east or west it is.
Together, these two values work like an address on Earth.
29. One-Minute Revision Test
1. What is the 0° latitude called?
2. What is the 0° longitude called?
3. What tells us the actual distance represented by a map distance?
4. What do latitude and longitude together form?
5. Which time does India follow?
This worksheet for chapter 1 is designed for easy practice and revision. It includes important questions and activities based on the textbook. Students can use it to check their understanding, strengthen their concepts and prepare for exams.
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