Locating Places on the Earth Class 6 Question Answer Social Science Chapter 1
NCERT Class 6 Social Science SST Chapter 1 Locating Places on the Earth Questions and Answers Solutions
Locating Places on the Earth Class 6 Questions and Answers (In-Text)
The Big Questions (Page-7)
Question 1.
What is a map and how do we use it? What are its main components?
Answer:
A map is a representation of the earth’s surface or a part of it on a flat surface according to scale.
Maps can be easily drawn with the help of symbols like colours, letters, shades, pictures, etc. The symbols represent different features like buildings, roads, bridges, trees, railway lines, temples, etc., and also make it easier to read the maps.
The components of maps are:
- Symbols: Symbols are used on maps because it is not possible to show all details of an area as they actually are. These symbols make it easier to draw maps and also to understand them.
- Direction: There are four main directions, i.e., East, West, South and North, known as the cardinal directions. Maps easily help us to locate direction on the given surface, because northern direction of a map is always marked as ‘ N ‘.
- Distance: With the help of scale, large areas can be shown on a small scale map.
Question 2.
What are coordinates? How can latitude and longitude be used to mark any location on the Earth?
Answer:
Latitude and longitude together are the two coordinates of a place. Latitude and longitude are a coordinate system that can be used to mark any location on Earth by using a numbered grid system to describe a location’s horizontal and vertical coordinates. To find the location, note the exact values of latitudes and longitudes where they intersect on the map or globe.
Question 3.
How are local time and standard time related to longitude?
Answer:
In India, the longitude of 821°E is treated as the standard meridian and the local time at this meridian is taken as the standard time for the whole country. It is known as Indian Standard Time (IST).
Page 9
Let’s Explore
On the map in Fig. 1.1 given on page 8
Question 4.
Mark the hospital.
Answer:
Question 5.
What is the meaning of the blue-coloured areas?
Answer:
Blue-coloured areas on the map represent water such as rivers, ponds.
Question 6.
Which is farther away from the railway station – the school, the Nagar Panchayat or the public garden?
Answer:
Nagar Panchayat is far away from railway station compared to the school and the public garden.
Question 7.
As a class activity, form groups of three or four students each. Let each group try to draw a map of your school and some of the streets or roads that lead to it, and a few neighbouring buildings. At the end, compare all the maps and discuss.
Answer:
Students do this activity themselves.
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Let’s Explore
Question 8.
Draw a simple map of a school’s playground. Let us assume it is a rectangle, 40 m in length and 30 m in width. Draw it precisely with your ruler on a scale of 1cm=10m.
Answer:
The playground is drawn to scale, with 1 cm representing 10 m , and the dimensions are labelled clearly. It provides a better visualisation of the playground’s layout and features.
Question 9.
Now measure the diagonal of the rectangle. How many centimetres do you get? Using the scale, calculate the real length of the playground’s diagonal, in metres.
Answer:
The diagonal of the rectangle on the map measures 5 cm . Using the scale of 1cm=10m, the real length of the playground’s diagonal is 50 m.
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Question 10.
Consider the map of the small city again. Identify the correct and incorrect statements in the list below:
Answer:
- The market is north of the hospital. Incorrect. The market is south of the hospital.
- The museum is southeast of the bank. Correct
- The railway station is northwest of the hospital. Correct
- The lake is northwest of the apartment blocks. Incorrect. The lake is southwest of the apartment blocks.
Question 11.
Taking your school as the starting point, do you know approximately in which cardinal direction your home is located? Discuss with your teacher and your parents.
Answer:
Students do this activity themselves.
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Let’s Explore
Question 12.
Using the same terms, write down your move if you play black and respond with the same move.
Answer:
If I’m playing as Black and responding to the move d 2 to d 4 , I would play d 7 to d 5 . So the notation for my move would be d 5 . This mirrors White’s move and also helps control the centre of the board!
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Question 13.
If the globe or atlas in your class has well-marked latitudes and longitudes, try to note down approximate values for the latitude and longitude of:
Answer:
1. Mumbai
Latitude: 19.0760°N
Longitude: 72.8777°E
2. Kolkata
Latitude: 22.5726°N
Longitude: 88.3639°E
3. Singapore
Latitude: 1.3521°N
Longitude: 103.8198°E
4. Paris.
Latitude: 48.8566°N
Longitude: 2.3522°E
Page No 21
Let’s Explore
Question 14.
Two friends, one sitting in Porbandar (Gujarat) and the other in Tinsukia (Assam), are speaking on the phone late afternoon. The latter remarks that the sun has set in Assam and it’s now dark. The former is surprised and says, “But it’s still full daylight here!” Explain why. And, as a class activity, calculate the difference in local time between those two cities. (Hint: for now, consider the difference in longitude between Porbandar and Tinsukia to be 30°; later, you can find out the precise value.)
Answer:
Longitude Difference: Since Porbandar (Gujarat) and Tinsukia (Assam) are approximately 30° apart in longitude, with Tinsukia being east of Porbandar, this results in a time difference of 2 hours (as 15°corresponds to 1 hour, 30° corresponds to 2 hours).
Sunset Times: If the sun sets at 6 pm in Assam (Tinsukia), it would still be 4 pm in Gujarat (Porbandar) because of the 2-hour time difference. Thus, the friend in Gujarat would still experience daylight while it is already dark in Assam. So, the local time in Porbandar is 2 hours ahead of the local time in Tinsukia. When it’s dark in Tinsukia, it’s still daylight in Porbandar.
Question 15.
Return to the two friends sitting in Gujarat and Assam. Use this example to explain the difference between local time and standard time.
Answer:
Local Time: When the Sun reaches the highest point in the sky while crossing the meridian of any place, it is noon (12.00). At some places, watches are adjusted according to this time. It is known as local time. Places having the same meridian of longitude have the same local time.
Standard Time: In countries with large east-west extent, the variation in local time is very great. It creates confusion over train timing, flight timing, etc. To solve this problem, the local time of a particular meridian is taken as the standard time for the entire region of the country.
Class 6 SST Locating Places on The Earth Question Answer (Exercise)
Question 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.)
Answer:
Let’s measure the distance on the map between estuary of the Narmada river and estuary of the Ganga river. Let’s assume, we measure it to be approximately 5.5 cm.Since the scale is 2.5 cm=500km, we can set up a proportion to calculate the real distance.
2.5cm = 500km
1 cm = 500 km/ 2.5
1cm = 200 km
Convert the measured distance on the map ( 5.5 cm ) to real distance.
5.5 cm × 200 km/cm = 1100km
So, the real distance from the estuary of the Narmada river to the estuary of the Ganga river is approximately 1100 km.
Question 2.
Why is it 5: 30 p.m. in India when it is 12 p.m. or noon in London?
Answer:
It is 5:30 p.m. in India and 12:00 noon in London because the time difference between India and London is 5 hours and 30 minutes. India is located East of Greenwich at 82° 30′ and 5 hours and 30 minutes ahead of GMT.
Question 3.
Why do we need symbols and colours in the map?
Answer:
Symbols and colours are important elements of a map because they can convey a lot of information in a limited space. They can also make maps easier to read and more attractive.
Question 4.
Find out what you have in the eight directions from your home or school.
Answer:
The eight directions are:
East, southeast, south, southwest, west, northwest, north, northeast.
Question 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.
Ansswer:
Standard Time:
- The time of the standard meridian of a country.
- Every country has its own particular standard time, and it remains the same for the whole country.
- Places on the same longitude can often have varying standard time.
Local time:
- Local time refers to time at a particular place, that is the time when the mid-day Sun is directly overhead.
- Different places in the same country have their own local times.
- Places on the longitude always have the same local time.
Question 6.
Delhi’s and Bengaluru’s latitudes are 29°N and 13°N, respectively; their longitudes are almost the same, 77′E. How much will be the difference in local time between the two cities?
Answer:
The difference of time between two places depends on the difference of longitude. As the longitudes are almost same, there is no difference in local time between the two cities.
Question 7.
Mark the following statements as true or false; explain your answers with a sentence or two.
1. All parallels of latitude have the same length.
Answer:
False. They are not of the same length. The length of a degree of latitude varies depending on the distance from the equator.
2. The length of a meridian of longitude is half of that of the Equator.
Answer:
False. All meridians are of equal length. The meridians cut the equator at a right angle and are all in the same length unlike parallels.
3. The South Pole has a latitude of 90°S.
Answer:
True. This is because the distance from the equator to the either pole is one-fourth of a circle around the Earth, which is 90°
4. In Assam, the local time and the IST are identical.
Answer:
False. Assam officially follows IST, its local solar time would be about 30 minutes ahead of IST.
5. Lines separating the time zones are identical with meridians of longitude.
Answer:
True. Time zones are generally based on the meridians of longitudes, with each time zone spanning 15° of longitude.
6. The Equator is also a parallel of latitude.
Answer:
True. The Equator is also a parallel of latitude, also known as a line of latitude diving the Earth into the Northern and Southern hemispheres at 0° latitudes.
Solve the crossword below.
7. Across
1. Lets you squeeze a huge area into your map.
4. A convenient sphere.
5. The longest parallel of latitude.
6. The place the Prime Meridian is attached to.
8. So convenient to find your way.
10. A measure of the distance from the Equator. Down
2. A measure of the distance from the Prime Meridian.
3. These two together allow us to locate a place.
6. What latitudes and longitudes together create.
7. The time we all follow in India.
9. These two are poles apart.
11. An abbreviation for a line across which the day and date change.
Answer:
Across:
1. scale
4. Globe
5. Equator
6. Greenwich
8. Map
10. Latitude
Down:
2. Longitude
3. Coordinates
6. Grid
7. IST
9. PML
11. IDL