Class-6 Subject- social SCIENCE CHAPTER-2 GLOBE LATITUDE AND LONGITUDE,

 EVENTS CONVENT HIGH SCHOOL
25/08/2021           CLASS-6             SESSION2021-22(SLOT-1)
social SCIENCE 
Chapter-2
GLOBE LATITUDE AND LONGITUDE
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1.  Answer the following questions briefly:

(a) What is the true shape of the earth?
(b) What is the globe?
(c) What is the latitudinal value of the Tropic of Cancer?
(d) What are the three heat zones of the Earth?
(e) What are parallels of latitude and meridians of longitude?
(f) Why does the Torrid Zone receive the maximum amount of heat?
(g) Why is it 5.30 p.m in India when it is 12.00 noon in London?
Answers:
(a) The true shape of the Earth is geoid-earth like shape. In other words, it is orange shaped.
(b) Globe. Globe is the three dimensional model of the earth.
(c) 2312° N.
(d) (i) Torrid Zone
(ii) Temperate Zone
(iii) Frigid Zone.
(e) Parallels of Latitudes and Meridians of Longitudes:
Parallels of Latitudes:
All the parallel circles from the equator to the poles are called parallels of latitudes.
Meridians of Longitudes:
All the semi-circles which join north pole to south pole are termed as meridians of longitudes.
(f) Torrid Zone receives the maximum amount of heat because of the following reasons:

• The Sun shines perpendicular between Tropic of Cancer and Tropic of Capricorn throughout the year.
• Perpendicular sun rays give more heat than slanting sun rays.

(g) It is 5.30 p.m. in India when it is 12.00 noon in London because of the following reasons:

• London is located at 0° longitude while the time of 8212° E longitude is taken as standard time in India.
• There is a difference of 8212 between the longitude of London and the Standard Meridian of India (8212 E).
• Time in India is ahead of London. It is 4 minutes ahead at every longitude towards east.
• Hence time in India is ahead of London by 5.30 hours (4 x 8212 = 330 minutes or 5.30 hours).

2. Tick the correct answer:

(a)The value of the prime meridian is
(i) 90°                                (ii) 0°                                     (iii) 60°

(b)The frigid zone lies near
(i) the Poles                             (ii) the Equator        (iii) the Tropic of Cancer

(c)The total number of longitudes are
(i) 360                                       (ii) 180                                             (iii) 90

(d) The Antarctic Circle is located in
(i) the Northern Hemisphere
(ii) the Southern Hemisphere
(iii) the Eastern Hemisphere

(e) Grid is a network of
(i) parallels of latitudes and meridians of longitudes
(ii) the Tropic of Cancer and the Tropic of Capricorn
(iii) the North Pole and the South Pole

Answers: (a)—(ii), (b)-(i),(c)-(i), (d)-(ii), (e)-(i).

3. Fill in the blanks.

1. The Tropic of Capricorn is located at…………………..
2. The Standard Meridian of India is…………………..
3. The 0° Meridian is also known as…………………..
4. The distance between the longitudes decreases towards ……………………….
5. The Arctic Circle is located in the……………….

Answers:

1. 23 1/2° S
2. 82 1/2° E
3. Prime Meridian
4. Prime Meridian
5. Northern.

4. Choose the correct option to complete the statements given below:

(i) The globe and the earth are different in …………………..
(a) shape                                                    (b) size
(c) continents and oceans                      (d) none of these.

(ii)    The axis is parallel to the ………………….
(a) equator                                                   (b)     Prime  Meridian
(c) latitudes                                                  (d)    all of these.

(iii)  The Tropic of Cancer is located at …………………….
(a) 23 1/2 ° N                                                 (b)     66 1/2 ° N
(c) 23 1/2 °S                                                (d)    66  1/2 ° S.

(iv)  The heat zone with the coldest climate is the ……………………….
(a) Torrid Zone                                          (b) Northern Temperate Zone
(c) The Frigid Zones                                (d) either of the Temperate Zones.

(v) From the westernmost point to the easternmost point, the local times of India extend over a time difference of……………………
(a) no difference                                        (b) 30 minutes
(c) 1 hour                                                    (d) over 1 hour.

(vi) The time difference between Greenwich and India is …………………….
(a) no difference                                        (b) 3 hours
(c) 5 hours 30 minutes                             (d) 12 hours 30 minutes.

Answers:  (i)—(b), (ii)—(b), (iii)—(a), (iv)—(c), (v)—(d), (vi)—(c).

5.Fill in the blanks with appropriate words given to complete each sentence:

1. Russia extends over eleven  time zones.
2. As we move away from the equator, the size of the latitudes decreases
3. The poles fall in the Frigid
4. To locate a point, we need to know its latitude, as well as longitude
6. The British Royal Observatory is located in Greenwich  UK.
7. A hemisphere is one half  of a sphere.
8. Latitudes and longitudes form a grid
9. All places lying on the same  longitude have the same time.
10. When it is 7.30 pm on August 16 in Greenwich, it is 1 am   (TIme) on August 17 (date) in Chennai.

6.State whether these sentences are true (T) or false (F).

1. The axis of the earth is not actually tilted as depicted in a globe.
2. The equator is the 0-degree latitude.
3. The Prime Meridian is the 180-degree longitude.
4. More than half of India lies in the Frigid Zone.
5. The Tropic of Capricorn does not pass through India.
6. The two Temperate Zones maintain a moderate climate.
7. The time at a place in the east of Greenwich is ahead of that in Greenwich,
8. The earth rotates from west to east.
9. The standard longitude for Indian time is the 64° longitude.

Answers:

1. False
2. True
3. False
4. False
5. True
6. True
7. True
8. True
9. False.