Telangana SCERT Solution Class VIII (8) Social Studies Chapter 3 Earth Movements and Seasons.
2.) Why do you think does Telangana not receive any snowfall during winter months?
Answer
Telangana is located in the tropical region where fairly hot temperatures over the year except during the monsoon season whereas in the sub-tropical climate the snowfall is formed inthe clouds that are below freezing in higher altitude.
3.) We have a rainy season. How do you think it is related to the movement of the Earth and the pattern of Sun’s rays? Does it occur in the summer or winter or in the season in between?
Answer
The seasons occur due to the Earth’s ‘Tilt’ and Revolution around the Sun. During summer the Sun’s rays fall straightly on our area the air in the atmosphere gets heated and moves up by forming low pressure belt. The winds from high pressure belt from the ocean blow to this area and give rains. Normally rainfall occurs after summer and in the beginning of winter due to these seasonal monsoons-winds.
5.) Explain the idea of rotation of the Earth to your parents or sisters or brothers. Write down their questions or doubts and try to answer them.
Answer
The questions are:
- Why does the earth rotate?
- What is the speed of the earth’s rotation?
- How can we prove the earth’s rotation?
- Why is the axis of earth tilled?
- What happens if earth stops its rotation?
6.) Imagine that the Earth does not rotate but goes around the Sun around the year. What difference will it make to the seasons and distribution of temperature?
Answer
If the earth did not rotate on its own axis this will cause extreme seasons and temperature as one portion of the earth which is infront of the sun would constantly get Sun’s heat and light and the other portion would remain cold and dark. This would make both portions unfit for lifethe bright half would be too hot and the dark half would be too cold.
7.) Identify a country in the Temperate Belt in both Northern and Southern Hemisphere. Compare the seasons in those countries and your place.
Answer
Japan is located in the temperate zone in the northern hemisphere while New Zealand is located in the temperate zone in the southern hemisphere
8.) What are the six seasons in Indian climate?
Answer
Seasons in Indian are called Ritusthere are six ritus which are:
- Vasanta (Spring)-Mid March to Mid May,
- Grishma (Summer)- Mid May to Mid July,
- Varsha (Monsoon)- Mid July to Mid September,
- Sharad (Autumn)- Mid September toMid November,
- Hemanta (pre-winter)- Mid November to Mid January and
- Shishira (winter)- Mid January – Mid March
9.) Read the first paragraph of this chapter and answer the following question: What is the impact of seasons on the lives of human beings?
Answer
The seasons on the earth helps life to exist as life doesn’t exist if there is only one season throughout the year too much cold or too much hot will not let human survive. We can see the constant change in the season of our surrounding – the flowering and fruiting of trees and plants, changes in the animal activity. The human beings are depends on the plant (provides vegetable, fruit) and animal (provides meat, clothes). So the seasons have a direct impact on the existence of human kind on earth.
More Additional Questions and Answers:
1.) What can we notice about Trees as the months passed by ?
As months passed by we can notice that trees shed leaves ,stand bare ,new shoots come forth ,leaves grew again ,they flower,and give fruits .
2.) What are the seasons of India ?
Most of the Indian sub continent witnesses broadly summer,Monsoon,And Winter .
3.) How are the seasons of southern India ?
The far south ,like TamilNadu,or kerela Or Andaman Nicobor does not experience much cold during the winter season .
4.) Which states of India experience summer season ?
The North Eastern states of India experience very brief summer season .
5.) What are six seasons of India ?
The six Ritus of India are vasanta, (spring ), Grishma (summer ),Varsha Monsoon ) Sharod Autumn ,Hemonta pre winter ) and shishira (winter )
- )What does vasanta symbolise ?
Vasanta (Spring) means the end of cold winter ,with flowering of Trees and is also the hervest time for winter crops .
7.) What are the festivals of vasanta ?
Vasantha panchomi,Holi,Ugadi,Gudipadua,Vishu,Bihu,Baisakhi ,and palandu ,are the seasons celebrated in India during spring season .
8.) What is the hottest month of Grishma ?
Ans.Grishma (summer ) is the time when it is hottest in most part of India .
9.) When does Dipavali is celebrated ?
Dipavali is celebrated in sharod Ritu (Autumn ) .
10.) What are the festivals of shishira( Winter )?
Lohori,pongal,and Makarsonkranti ,are celebrated in winter .
11.) What are seasons of sub-polar and temperate regions ?
Summer ,spring,autumn, and winter are the seasons of sub-polar and temperate region .
12.) What is the coldest period of the year ?
Shisira (winter ) is the coldest period of the year .
13.) How are the summer month of Northern countries ?
The summer month is not so cold but still much cooler than in our state .The days are much longer in summer .so much so that we can see the sun even at Midnight .
14.) What are countries of southern continents ?
Australia ,south Afrika ,and chile,are the countries of southern countries .
15.) Why some parts of the earth warm and some cold ?
To understand that why some parts of the year warm and some are cold because of the complex interaction between several factors . they are –
I.) 1.The spherical shape of the earth and the curvature of its surface .
II.) 2.Daily rotation of the earth on its own axis .
III.) 3.The tilt of Axis of rotation compared to the plane on which the earth moves .
IV.) 4.The earths movement around the sun once a year .
16.) Why don’t we feel the movement of the earth?
We cannot feel the movement of earth because, the earth is huge in size but we are too small to feel the movement.
17.) why the sun rise in the east and sets in the west ?
Because of the rotation of the earth the sun ,the moon ,and the stars appear to rise in east and sets in the west .
18.) what is the effect of earths rotation ?
The first and foremest effect of earths rotation is the daily alternation of day and might as portions of earths surface and tuned first to and then away from the sun .
19.) How much portion of the earth is illumined by the sun ?
The sun illuminates one half of the earth at any given movement .
20.) What is the circle of illumination ?
The Edge of the sunlit hemisphere called the circle of illumination which is a great circle that divides the earth between a light half and the dark half .
21.) What would happen if the earth did not rotate on its axis ?
If the sun does not rotate on its axis then one portion of the earth which is in front of the sun would constantly get suns heat and light and the other portion would remain cold and dark .This would make both portions unfit for life the bright half would be too hot and half would be too cold .
22.) What is Revolution of the earth ?
The Motion of the earth around the sun is called revolution ?
23.) How much time does each revolution take ?
The earths revolution takes about 365 days and 5.56 hours . This is the length of a year on the earth.
24.) What is orbital plane ?
The earth goes around the sun on a level plane in open space . This is called the orbital plane .
25.) what is the angle of earth s axis ?
The earth axis of rotation does not stand vertical on its plane but is tilted on it .so as to form a 66.5 degree angle.
26.) What will happen if we see earth from the sky ?
If we see the Earth from thesky we will be to see any tilt or axis .It will appear just as the moon or sun appear to us – around disc .
27.) What is called the polarity of axis ?
As earth revolves around the sun earth axis remains tilted in the same direction throughout the year .It keeps pointing to the pole star which can be seen in the Northern sky in the night, and this is called the polarity of axis .
28.) What happens when the Earth goes around the sun ?
When the earth goes around the sun in revolutionary manner during some month the Northern Hemisphere is tilted towards the sun while in some months the southern Hemisphere .
29.) What is the effect of the tilt of the earths axis ?
The effect of the tilt of the axis combines with the spherical shape of earth to influence distribution of solar heat over the earth .
30.) why there is hotter and colder in some areas ?
It is hotter in the areas which face the sun directly and less hot in the areas that receive the sun
Raysa t an angle.
31.) What happen with the tilt of earths axis ?
Ans. As a result of the tilt of the axis they are which faces the sun directly keeps shifting throughout the year .
32.) When the sun shines directly over the Equator ?
In March the sun shines directly over the equator .
33.) When the sun shines directly over the tropic of cancer in Northern Hemisphere in june >
34.) What is Tropical Belt ?
There is a belt within which the direct rays of the sun fall at some time of the year or the other .
This belt extending from the Tropic of cancer to the tropic of Capricorn . This belt is called the Tropical belt . This belt gets the maximum heat energy from the sun .
35.) What is equinox ?
On march 21 and September 23 throughout the world the day and night are equl in size .So these are called equinox .
36.) What is Temperate zone ?
As we move northwards or southwards of the Tropical belt . we reach a region where it get warms , in summer but also very cold in winters .This is Temperate Zone .
37.) Where is polar region ?
If we move further north or south of the temperate belt we will reach at the polar region .
38.) what happens in polar region ?
The seasons in polar region are very peculiar . this region is far away from the sun during winter months and does not get any sunshine in the day .That is for six months there is no sunshine on the poles.For the next six month it constantly faces the sun throughout the 24 hours of a day .There is no night or darkness .
39.) Why the Arctic ocean remain frozen throughout the year?
In winter season the polar region gets very slanting rays of sun .The sun does not rise high in the blue sky .But only stays just above the sunrise point .so it never get very hot .so far six months it is freezing colt and the Arctic ocean remains frozen throughout the year .
40.) What kind of plants grow in polar region?
In polar region when the sun appears for six months the snow melts .parts of the sea also melts and small plants like moss, lichen ,and some flowering plants .