STD 6 Social Science: Chapter 05 The Earth: Myth and Reality - Questions and Answers | Teaching Manual 


Study Notes for Class 6 Social Science (English Medium) ഭൂമി കഥയും കാര്യവും | Text Books Solution Social Science (English Medium) Chapter 05 The Earth: Myth and Reality | ഈ യൂണിറ്റിന്റെ Teaching Manual & Teachers Handbook ഈ പേജിന്റെ
Chapter 05: The Earth: Myth and Reality- Textual Questions and Answers & Model Questions
1.  Who brought the concept of spherical earth first?
Answer: The Greek philosopher Thales

2. Who proved that the earth is spherical?
Answer: Magellan's voyage around the world proved that the earth is spherical.

3. Who proved that the earth is not truly spherical in shape, but slightly
flattened at the poles and bulged in the middle?
Answer: Sir Isaac Newton

4. What is known as Geoid?
Answer: The spherical shape of the earth which is slightly flattened at the
poles and bulged at the equator is Known as Geoid.

5. What is latitude?
Answer: Latitude is the angular distance to any point on the surface of the
earth from the centre. By joining the same angular distances, we get the lines of latitudes.

6. What is called the axis of the earth?
Answer: Imagine there is a straight pole passing through the centre of the earth. This imaginary line is the axis of the earth.

7. What is known as the equator?
Answer: The latitudinal line along the middle of the globe is the longest one. This line of latitude is called the equator.

8. What is the angular measurement of the equator?
Answer: The angular measurement of the equator is 0°

9. What is known as the North and South poles respectively?
Answer: The latitudes at 90° north and 90° south of the equator are circles.
These points are known as the North and South poles respectively.

10. Which is the line of latitude dividing the earth into two hemispheres?
Answer: Equator

11. Which is the hemisphere to the north of the equator?
Answer: Northern hemisphere

12. Which is the hemisphere to the south of the equator?
Answer: Southern hemisphere

13. Which is the biggest circle of latitude?
Answer: Equator

14. What are called north latitudes?
Answer: Latitudes in the northern hemisphere are called North latitudes

15. What is called South latitudes?
Answer: Latitudes in the southern hemisphere are called South latitudes.

16. What are longitudes?
Answer: Longitudes are angular distances east and west of the standard meridian. Lines of longitudes are imaginary lines connecting the same angular distances with reference to the standard meridian.
17. What is Standard meridian?
Answer: 0° longitude is Known as standard meridian.

18. Identify the lines of longitude which divides the earth into eastern and western hemispheres.
Answer: The lines formed by joining 0° longitude and 180° longitudes

19. What is called the east longitudes?
Answer: Longitudes along the eastern hemisphere are called the east longitudes.

20. What is called the west longitudes?
Answer: The longitudes along the western hemisphere is called the west longitudes

21. On what basis the exact location of places on earth is determined?
Answer: The exact location of places on the Earth is determined based on the latitudes and longitudes.

22. Complete the following table with the help of the globe and the world map.
23. What is called the rotation of the earth?
Answer: The spinning of the Earth on its own axis is called rotation.

24. How the day and night is experienced one after the other?
Answer: The part of the Earth facing the Sun due to rotation gets illuminated and experiences day. As the opposite face does not get sunlight, the night is experienced there. Day and night are experienced one after the other due to the rotation of the Earth.

25. The Earth takes ......... hours to complete one rotation.
Answer: 24

26. Why does the Sun seems to rise in the east and set in the west?
Answer: It is because of the rotation of the Earth from west to east that the Sun seems to rise in the east and set in the west.

27. Draw the Sun at the proper positions with reference to the shadows given. 
28. What is called the revolution of the earth?
Answer: Along with the rotation on its axis, the Earth also moves around the Sun. The movement of the earth around the Sun is called revolution.
29. Why do the seasonal changes occur?
Answer: It is due to the revolution of the Earth that we experience different seasons

30. How long it takes for the Earth to complete one revolution around the Sun?
Answer: it will take 365¼ days for the Earth to complete one revolution around the Sun.

31. Why every fourth year is a Leap year?
Answer: To complete one revolution, the Earth takes 365¼ days. But a year normally has 365 days. The remaining ¼ part of a day will be considered as a full day once every four years. Thus every fourth year has 366 days and is called a Leap Year.

32. Complete the table 'The Earth: My lifelong friend (Textbook Page: 75)
1. The things you like on the Earth .......................
2. The country you like the most and its location based on the latitudes and longitudes ..............................................................
3. Problems faced by the Earth .............................
4. Suggestions to overcome the problems ...........................
Answer:
1. Beautiful sceneries and creatures on the earth, Various natural phenomena like rainfall, snowfall etc. 
2. India. Between 8° North 38° North Between 68° East and 98° East
3. Resource depletion, Global warming, Climate change, pollutions etc.
4. Replace disposal items with reusable items, sustainable development of resources, Afforestation etc.  

33. Name the unique shape of the Earth. Explain the characteristic features of this shape.
Answer: Earth is geoid in shape. The spherical shape of the Earth which is slightly flattened at the poles and bulged at the Equator is known as Geoid.

34. Rotation and revolution cause varied effects. Explain the effects?
Answer:
* Day and night are experienced one after the other due to the rotation of the Earth.
* It is because of the rotation of the Earth from west to east that the Sun
seems to rise in the east and set in the west.
* It is due to the revolution of the Earth that we experience different seasons.

35. If one longitude is drawn for every one degree of angular distance, how many longitudes be there on Earth?
Answer: 360 longitudes







👉Std VI Social Science Textbook (pdf) - Click here 
TEACHING APTITUDE TEST (K-TET, C-TET,, etc.) ---> Click here