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Q1 Answer the following questions briefly. (a) What is the angle of inclination of the earth’s axis with its orbital plane? (b) Define rotation and revolution. (c) What is a leap year? (d) Differentiate between the Summer and Winter Solstice. (e) What is an equinox? (f) Why does the Southern Hemisphere experience Winter and Summer Solstice in different times than that of the Northern Hemisphere? (g) Why do the poles experience about six months day and six months night? Ans: (a) The angle of inclination of the Earth’s axis with its orbital plane is 66 ½◦.
(b) Rotation:
- The movement of the Earth on its axis is called rotation.
- The Earth takes 24 hours to complete one rotation.
- Days and nights are caused due to rotation of the Earth.
Revolution:
- The movement of the Earth around the sun in a fixed path or the orbit is called revolution.
- The Earth takes 365 days six hours to complete one revolution.
- Seasons are caused due to revolution of the Earth.
(c) A year with 366 days is called leap year. It occurs once in four years on the month of February and it is 29th day of that month. It is also called intercalary year. The Earth do not take exact 365 days in an year and 24 hours in a day, so we add them as one extra day once in four year.
(d) Differences between summer and winter solstice are as follows:
Summer Solstice
Winter Solstice
Summer solstice occurs on 21st June in Northern Hemisphere.
Winter Solstice occurs on 22nd December in Southern Hemisphere.
The Northern Hemisphere experiences more heat and light.
Southern Hemisphere experiences less heat and light.
It is summer in Northern Hemisphere.
It is winter in Southern Hemisphere.
Days are longer and nights are shorter.
Nights are longer and days are shorter.
(e) On 23rd September and 21st March, the rays of sun directly falls on the equator. So, at that position neither of the poles are tilted. So at that specific or we can say a particular day the earth experiences equal days and nights and this is called as equinox.
(f) The Southern Hemisphere experience winter and summers solstice in different times than that of the Northern Hemisphere because:
- Southern Hemisphere is tilted towards the Sun on 22nd December, so summer Solstice is there in Southern Hemisphere. At that time Winter Solstice is in Northern Hemisphere.
- In 21st June the Northern Hemisphere is tilted towards the Sun, so Summer Solstice is there and Winter Solstice is in the Southern Hemisphere.
(g) The poles experiences about six months day and six months night because:
- When Northern Hemisphere is tilted towards the Sun, The North Pole remains in the light for the whole day. This position remains for six months from 21st March- 23rd September.
- On the same time Southern Hemisphere is away from the Sun, the South Pole does not get light for six months. So it experiences night for six months and vice versa.
Q2 Tick the correct answers. (a) The movement of the earth around the sun is known as (i) Rotation (ii) Revolution (iii) Inclination (b) Direct rays of the sun fall on the equator on (i) 21 March (ii) 21 June (iii) 22 December (c) Christmas is celebrated in summer in (i) Japan (ii) India (iii) Australia (d) Cycle of the seasons is caused due to (i) Rotation (ii) Revolution (iii) Gravitation Ans: (a) (ii) Revolution
Seasons are caused due to revolution of the earth around the sun. Revolution is a movement of earth near the sun on a fixed path (orbit) in an elliptical way.
(b) (i) 21 March
On 21st March, the rays of sun directly fall on the equator. So at that particular day, the earth is not tilted towards any pole and experiences an equinox (equal days and nights).
(c) (iii) Australia
As Australia is present in the Southern Hemisphere so during December Australia experience summer due to revolution. And, in same manner at that time the Northern hemisphere experiences winter.
(d) (ii) Revolution
As earth revolves around the sun in an elliptical path, so it cause change in season.
Q3 Fill in the blanks. (a) A leap year has _______________ number of days. (b) The daily motion of the earth is _______________. (c) The earth travels around the sun in ______________ orbit. (d) The sun’s rays fall vertically on the Tropic of ___________ on 21st June. (e) Days are shorter during ___________ season. Ans: (a) 29
There are 29 days in February once in every four year which is an additional day of the year, also called the leap year.
(b) Rotation
Rotation is the daily motion of the earth. The earth completes one rotation in 24 hours. Days and nights are cause due to rotation of the earth.
(c) Elliptical
Elliptical shape is something like oval. The orbit of the planets is an elliptical path. It is not a complete circle.
(d) Cancer
On 21st June, the Northern Hemisphere gets tilted towards the sun. So, the rays of sun directly fall on the Tropic of Cancer (23½◦N).
(e) Winter
Due to summer solstice, the days get shorter and nights get longer than the days.
Class 6 Social Science - The Earth Our Habitat Chapter 3: Motions of the Earth - NCERT Solutions
This page focuses on the complete NCERT solutions for Class 6 Social Science - The Earth Our Habitat Chapter 3: Motions of the Earth. This section provides detailed, easy-to-understand solutions for all the questions from this chapter. These Motions of the Earth question answers will offer you valuable insights and explanations.
- Earth practices two types of motion: Rotation and Revolution.
- Axis is an imaginary line which makes an angle of 66 ½◦.
- Days and nights are caused due to rotation.
- Seasons are caused due to revolution.
- Circle of illumination is the circle which divides day from night on globe.
- Leap year comes after every 4 years and at that time, February has 29 days. It means, earth usually have 365 days but in the leap year earth will have 366 days.
- The longest day and shortest night is observed on 21st June.
- 21st March and 23rd September experiences equal day and night which is known as equinox.
Exercise 1 ( Page No. : 21 )
Key Features of NCERT Class 6 Social Science - The Earth Our Habitat Chapter 'Motions of the Earth' question answers :
- All chapter question answers with detailed explanations.
- Simple language for easy comprehension.
- Aligned with the latest NCERT guidelines.
- Perfect for exam preparation and revision.
Popular Questions of Class 6 Social Science - The Earth Our Habitat
- Q:-
Tick the correct answers.
(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 merdians of longitudes
(ii) the Tropic of Cancer and the Tropic of Capricorn
(iii) the North Pole and the South Pole - Q:-
Answer the following questions briefly.
(a) What is the true shape of the earth?
(b) What is a 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 maximum amount of heat?
(g) Why is it 5.30 p.m. in India and 12.00 noon in London? - Q:-
Tick the correct answer.
(a) The planet known as the “Earth’s Twin” is
(i) Jupiter (ii) Saturn (iii) Venus(b) Which is the third nearest planet to the sun ?
(i) Venus (ii) Earth (iii) Mercury(c) All the planets move around the sun in a
(i) Circular path (ii) Rectangular path (iii) Elongated path(d) The Pole Star indicates the direction to the
(i) South (ii) North (iii) East(e) Asteroids are found between the orbits of
(i) Saturn and Jupiter (ii) Mars and Jupiter (iii) The Earth and Mars - Q:-
Fill in the blanks.
(a) The deepest point on the earth is _____________ in the Pacific Ocean.
(b) The _____________ Ocean is named after a country.
(c) The _____________ is a narrow contact zone of land, water and air that supports life.
(d) The continents of Europe and Asia together are known as _____________.
(e) The highest mountain peak on the earth is _____________. - Q:-
Tick the correct answers.
(a) The mountains differ from the hills in terms of
(i) elevation (ii) slope (iii) aspect(b) Glaciers are found in
(i) the mountains (ii) the plains (iii) the plateaus(c) The Deccan Plateau is located in
(i) Kenya (ii) Australia (iii) India(d) The river Yangtze flows in
(i) South America (ii) Australia (iii) China(e) An important mountain range of Europe is
(i) the Andes (ii) the Alps (iii) the Rockies - Q:-
Fill in the blanks.
1. A ___________ is an unbroken flat or a low-level land.
2. The Himalayas and the Alps are examples of _______________types of mountains.
3. _____________ areas are rich in mineral deposits.
4. The _________________ is a line of mountains.
5. The ____________areas are most productive for farming. - Q:-
Tick the correct answers.
(a) Maps showing distribution of forests are
(i) Physical map (ii) Thematic Map (iii) Political map(b) The blue colour is used for showing
(i) Water bodies (ii) Mountains (iii) Plains(c) A compass is used –
(i) To show symbols (ii) To find the main direction (iii) To measure distance(d) A scale is necessary
(i) For a map (ii) For a sketch (iii) For symbols - Q:-
Answer the following questions briefly.
(a) Name the major physical divisions of India.
(b) India shares its land boundaries with seven countries. Name them.
(c) Which two major rivers fall into the Arabian Sea?
(d) Name the delta formed by the Ganga and the Brahmaputra.
(e) How many States and Union Territories are there in India? Which states have a common capital?
(f) Why do a large number of people live in the Northern plains?
(g) Why is Lakshadweep known as a coral island? - Q:-
Tick the correct answers.
(a) The southernmost Himalayas are known as
(i) Shiwaliks (ii) Himadri (iii) Himachal(b) Sahyadris is also known as
(i) Aravali (ii) Western Ghats (iii) Himadri(c) The Palk Strait lies between the countries
(i) Sri Lanka and Maldives
(ii) India and Sri Lanka
(iii) India and Maldives(d) The Indian islands in the Arabian Sea are known as
(i) Andaman and Nicobar Islands
(ii) Lakshadweep Islands
(iii) Maldives(e) The oldest mountain range in India is the
(i) Aravali hills (ii) Western ghats (iii) Himalayas - Q:-
(a) The mountain range that separates Europe from Asia is
(i) the Andes (ii) the Himalayas (iii) the UralsTick the correct answers.
(b) The continent of North America is linked to South America by
(i) an Isthmus (ii) a Strait (iii) a Canal(c) The major constituent of atmosphere by per cent is
(i) Nitrogen (ii) Oxygen (iii) Carbon dioxide(d) The domain of the earth consisting of solid rocks is
(i) the Atmosphere (ii) the Hydrosphere (iii) the Lithosphere(e) Which is the largest continent?
(i) Africa (ii) Asia (iii) Australia
Recently Viewed Questions of Class 6 Social Science - The Earth Our Habitat
- Q:-
(a) The mountain range that separates Europe from Asia is
(i) the Andes (ii) the Himalayas (iii) the UralsTick the correct answers.
(b) The continent of North America is linked to South America by
(i) an Isthmus (ii) a Strait (iii) a Canal(c) The major constituent of atmosphere by per cent is
(i) Nitrogen (ii) Oxygen (iii) Carbon dioxide(d) The domain of the earth consisting of solid rocks is
(i) the Atmosphere (ii) the Hydrosphere (iii) the Lithosphere(e) Which is the largest continent?
(i) Africa (ii) Asia (iii) Australia - Q:-
Answer the following questions briefly.
(a) What is the angle of inclination of the earth’s axis with its orbital plane?
(b) Define rotation and revolution.
(c) What is a leap year?
(d) Differentiate between the Summer and Winter Solstice.
(e) What is an equinox?
(f) Why does the Southern Hemisphere experience Winter and Summer Solstice in different times than that of the Northern Hemisphere?
(g) Why do the poles experience about six months day and six months night? - Q:-
Tick the correct answers.
(a) Maps showing distribution of forests are
(i) Physical map (ii) Thematic Map (iii) Political map(b) The blue colour is used for showing
(i) Water bodies (ii) Mountains (iii) Plains(c) A compass is used –
(i) To show symbols (ii) To find the main direction (iii) To measure distance(d) A scale is necessary
(i) For a map (ii) For a sketch (iii) For symbols - Q:-
Answer the following questions briefly.
(a) What are the four major domains of the earth?
(b) Name the major continents of the earth.
(c) Name the two continents that lie entirely in the Southern Hemisphere.
(d) Name the different layers of atmosphere.
(e) Why is the earth called the ‘blue planet’?
(f) Why is the Northern Hemisphere called the Land Hemisphere?
(g) Why is the Biosphere important for living organisms? - Q:-
Fill in the blanks.
1. A ___________ is an unbroken flat or a low-level land.
2. The Himalayas and the Alps are examples of _______________types of mountains.
3. _____________ areas are rich in mineral deposits.
4. The _________________ is a line of mountains.
5. The ____________areas are most productive for farming. - Q:-
Fill in the blanks.
(a) The Tropic of Capricorn is located at _________________.
(b) The Standard Meridian of India is ____________________.
(c) The 0° Meridian is also known as ____________________.
(d) The distance between the longitudes decreases towards___________.
(e) The Arctic Circle is located in the ____________ hemisphere. - Q:-
Answer the following questions briefly.
(a) Which winds bring rainfall in India? Why is it so important?
(b) Name the different seasons in India.
(c) What is natural vegetation? - Q:-
Answer the following questions briefly.
(a) What is the true shape of the earth?
(b) What is a 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 maximum amount of heat?
(g) Why is it 5.30 p.m. in India and 12.00 noon in London? - Q:-
Tick the correct answers.
(a) The southernmost Himalayas are known as
(i) Shiwaliks (ii) Himadri (iii) Himachal(b) Sahyadris is also known as
(i) Aravali (ii) Western Ghats (iii) Himadri(c) The Palk Strait lies between the countries
(i) Sri Lanka and Maldives
(ii) India and Sri Lanka
(iii) India and Maldives(d) The Indian islands in the Arabian Sea are known as
(i) Andaman and Nicobar Islands
(ii) Lakshadweep Islands
(iii) Maldives(e) The oldest mountain range in India is the
(i) Aravali hills (ii) Western ghats (iii) Himalayas - Q:-
Tick the correct answer.
(a) The planet known as the “Earth’s Twin” is
(i) Jupiter (ii) Saturn (iii) Venus(b) Which is the third nearest planet to the sun ?
(i) Venus (ii) Earth (iii) Mercury(c) All the planets move around the sun in a
(i) Circular path (ii) Rectangular path (iii) Elongated path(d) The Pole Star indicates the direction to the
(i) South (ii) North (iii) East(e) Asteroids are found between the orbits of
(i) Saturn and Jupiter (ii) Mars and Jupiter (iii) The Earth and Mars
- NCERT Chapter