By reviewing Kerala Syllabus SCERT Class 6 Social Science Solutions Chapter 4 From the Globe to the Map Important Questions, students can improve their conceptual understanding.
From the Globe to the Map Extra Questions and Answers Class 6 Social Science Chapter 4 Kerala Syllabus
From the Globe to the Map Class 6 Important Questions
Question 1.
a. Name the unique shape of the Earth.
b. Explain the characteristic features of this shape.
Answer:
a. The unique shape of the Earth is called Geoid.
b. The spherical shape of the Earth which is slightly flattened at the poles and bulged at the Equator is known as Geoid. The word Geoid means ‘earth-shaped’.
Question 2.
a. What you mean by latitude?
b. Name the biggest circle of latitude?
c. Observe the following figure of the Earth and mark important lines of latitude?
Answer:
a. Latitude is the angular distance to any point on the surface of the Earth from the center. By joining the same angular distances, we get the lines of latitudes.
b. Equator
c. 
Question 3.
a. Name the curved lines perpendicular to the latitudes.
b. What you mean by standard meridian?
c. Can you write features of longitudes?
Answer:
a. Longitudes
b. 0 degree longitude is known as the Standard Meridian
c. Features of longitudes
- Longitudes are the lines connecting both the poles on the globe.
- Longitudes are angular distances east and west of the Standard Meridian
Question 4.
Find the following
a. Line of the latitude dividing the Earth into two hemispheres
b. Hemisphere to the north of the Equator
c. Hemisphere to the south of the Equator
d. The biggest circle of latitude.
Answer:
a. Equator
b. Northern hemisphere
c. Southern hemisphere
d. Equator
Question 5.
a. What is the angular distance between the Standard Meridian and the line of longitude opposite to it?
b. Identify the lines of longitudes which divide the Earth into eastern and western hemispheres.
Answer:
a) 180 degree
b) Standard Meridian
Question 6.
Match the Following.
| A | B |
| 1. Cylindrical Projection | a. Network of lines transferred to a conical surface |
| 2. Zenithal Projection | b. Used to map equatorial regions |
| 3. Conical Projection | c. Network of lines projected on a flat surface |
Answer:
| A | B |
| 1. Cylindrical Projection | b. Used to map equatorial regions |
| 2. Zenithal Projection | c. Network of lines projected on a flat surface |
| 3. Conical Projection | a. Network of lines transferred to a conical surface |
Question 7.
Fill the missing parts by analysing the relation.
I. a. Equator: 0 degree
b. Tropic of cancer: ……………………..
II.
a. Equatorial regions: Cylindrical projections
b. Mid-latitude regions: ……………………..
Answer:
I. Tropic of cancer: 231/2° North
II. Mid latitude regions: Conical Projections
Question 8.
Match the following
| Important lines of latitude | Measure in degrees |
| Equator | 231/2° South |
| Tropic of Cancer | 661/2° South |
| Tropic of Capricorn | 661/2° North |
| Artie Circle | 0° |
| Antarctic Circle | 231/2° North |
Answer:
| Important lines of latitude | Measure in degrees |
| Equator | 0° |
| Tropic of Cancer | 231/2° North |
| Tropic of Capricorn | 231/2° South |
| Artie Circle | 661/2° North |
| Antarctic Circle | 661/2° South |
Question 9.
a. What is GIS?
b. Write the instances that we use GIS.
Answer:
a.
- It is the method of collecting, analysing and storing geographic information and presenting it in the form of maps, graphs and tables whenever needed. Maps are also used as one of the primary sources of information in the GIS.
- With the help of computers, maps are converted to digital forms by fixing the latitudinal and longitudinal positions.
- Data is collected from this digital map as the base map and is used for different purposes. This technology can be used in various fields such as cartography, resource conservation, disaster management, tourism, transportation and communication.
b.
- Finding routes on Google Maps.
- Tracking delivery of online orders.
- Locating nearby hospitals, ATMs, or restaurants.
- Monitoring weather forecasts and cyclones.
- Managing city traffic through navigation apps.
Question 10.
a. What is the other name of the Prime Meridian?
b. Why is the International Date Line not straight?
c. How are latitudinal and longitudinal lines useful?
Answer:
a. The other name of the Prime Meridian is Greenwich Meridian.
b. The International Date Line is not straight because it zig-zags to avoid dividing islands and countries into two different dates.
c. Latitudinal and longitudinal lines are useful to determine the exact location of a place, region, or object on Earth.
Question 11.
a. How many longitudinal lines are there on Earth?
b. Why is the 180° longitude important?
c. What is the significance of longitudinal lines?
Answer:
a. There are 360 longitudinal lines on Earth.
b. The 180° longitude is important because it forms the basis of the International Date Line, where the date changes by one day when crossed.
c. Longitudinal lines are significant because they help to determine time zones and exact locations on Earth.
Question 12.
a. Name the three main types of map projections based on the shape of the developable surface.
b. Write one use each of Cylindrical Projection and Conical Projection.
c. How is GIS different from traditional maps? Write any two advantages of GIS.
Answer:
a. The three main types of map projections are:
Cylindrical Projection, Zenithal Projection and Conical Projection
b. Cylindrical Projection: Used for exact mapping of equatorial regions. Conical Projection: Used for making maps of mid-latitude regions.
c. GIS is different from traditional maps because it stores geographic information digitally and allows analysis, updates, and multiple layers of data. Two advantages of GIS: It can quickly produce maps, graphs, and tables as needed. It is useful in many fields like tourism, transport, disaster management, etc.
Question 13.
What happens to the size of circles of latitude as we move from the equator to the poles?
Answer:
As we move from the equator towards the poles, the circles of latitude get smaller in size.
Question 14.
a. What are the 90°N and 90°S latitudes called?
b. What is the imaginary line through the centre of the Earth connecting the poles called?
c. At what angle is the Earth’s axis inclined from the perpendicular to the orbital plane?
Answer:
a. The 90°N latitude is called the North Pole, and the 90°S latitude is called the South Pole.
b. The imaginary line through the centre of the Earth connecting the poles is called the Earth’s axis.
c. The Earth’s axis is inclined at an angle of 231/2° from the perpendicular to the orbital plane.
Question 15.
Identify the map projections.
Answer:
A. Conical projections
B. Zenithal Projections