The Earth has two types of motions, which lead to seasons and day-night patterns. These motions are – rotation around its own axis and revolution around the Sun. Rotation means the movement of the earth on its axis. It rotates from the west towards the east. Revolution means the movement of the Earth around the Sun in a fixed path or orbit. This movement causes seasonal variations in different parts of the Earth. NCERT Solutions for Class 6 Social Science Geography Chapter 3 Motions of the Earth
NCERT Solutions for Class 6 Social Science Geography Chapter 3 Motions of the Earth
1. Answer the following questions briefly.
(a) What is the angle of inclination of the earth’s axis with its orbital plane?
Sol :
The angle of inclination of the earth’s axis with its orbital plane is 66½°.
(b) Define rotation and revolution.
Sol :
The movement of the earth on its axis is called rotation. The movement of the earth around the sun in a fixed path or an orbit is called Revolution.
(c) What is a leap year?
Sol :
Every fourth year, February has 29 days instead of 28 days. Such a year with 366 days is called a leap year.
(d) Differentiate between the Summer and Winter Solstice.
Sol :
Summer Solstice– When the Southern hemisphere experiences the winter season and it is summer in the northern hemisphere. At that point in time, the position of the earth on 21st June is called the Summer Solstice.Winter Solstice– When the Southern hemisphere experiences the summer season and the reverse occurs at the Northern hemisphere. At that point in time, the position of the earth on 22nd December is called the Winter Solstice.
(e) What is an equinox?
Sol :
On 21st March and September 23rd, direct rays of the sun fall on the equator. At this position, neither of the poles is tilted towards the sun. Therefore, the whole earth experiences equal days and equal nights. This is called an equinox.
(f) Why does the Southern Hemisphere experience Winter and Summer Solstice at different times than that of the Northern Hemisphere?
Sol :
The Earth is always revolving and it is divided into two hemispheres. The part of the earth which faces the sun experiences summer and the part away from the sun experiences winter. Therefore, the Southern Hemisphere experiences the Winter and Summer Solstice at different times than that of the Northern Hemisphere.
(g) Why do the poles experience about six months day and six months night?
Sol :
The Poles experience 6 months of day and six months of nights due to the inclination of the earth on its own axis. This inclination keeps one pole towards the sun and another pole away from the sun for 6 months each. This is the reason behind this condition.
2. Tick the correct answers.
(a) The movement of the earth around the sun is known as
(i) Rotation (ii) Revolution (iii) Inclination
Sol :
(ii) Revolution
(b) Direct rays of the sun fall on the equator on
(i) 21 March (ii) 21 June (iii) 22 December
Sol :
(i) 21 March
(c) Christmas is celebrated in summer in
(i) Japan (ii) India (iii) Australia
Sol :
(iii) Australia
(d) Cycle of the seasons is caused due to
(i) Rotation (ii) Revolution (iii) Gravitation
Sol :
(ii) Revolution
3. Fill in the blanks.
(a) A leap year has _______________ number of days.
Sol :
A leap year has 366 number of days.
(b) The daily motion of the earth is _______________.
Sol :
The daily motion of the earth is rotation.
(c) The earth travels around the sun in ______________ orbit.
Sol :
The earth travels around the sun in an elliptical orbit.
(d) The sun’s rays fall vertically on the Tropic of ___________ on 21st June.
Sol :
The sun’s rays fall vertically on the Tropic of Cancer on 21st June.
(e) Days are shorter during ___________ season.
Sol :
Days are shorter during winter season.
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CBSE Notes for Class 6 Geography Free Download for All Chapters
Download PDF of NCERT Solutions for Class 6 Geography
| Chapter Name | CBSE Class 6 Geography Study Notes | NCERT Solutions Download Class 6 |
| The Earth in the Solar System | The Earth in the Solar System Class 6 Notes Geography Chapter 1 | NCERT Solutions The Earth in the Solar System Chapter 1 |
| Globe: Latitudes and Longitudes | Globe: Latitudes and Longitudes Class 6 Notes Geography Chapter 2 | NCERT Solutions Globe: Latitudes and Longitudes Chapter 2 |
| Motions of the Earth | Motions of the Earth Class 6 Notes Geography Chapter 3 | NCERT Solutions Motions of the Earth Chapter 3 |
| Maps | Maps Class 6 Notes Geography Chapter 4 | NCERT Solutions Maps Chapter 4 |
| Major Domains of the Earth | Major Domains of the Earth Class 6 Notes Geography Chapter 5 | NCERT Solutions Major Domains of the Earth Chapter 5 |
| Major Landforms of the Earth | Major Landforms of the Earth Class 6 Notes Geography Chapter 6 | NCERT Solutions Major Landforms of the Earth Chapter 6 |
| Our Country – India | Our Country – India Class 6 Notes Geography Chapter 7 | NCERT Solutions Our Country – India Chapter 7 |
| India: Climate, Vegetation and Wildlife | India: Climate, Vegetation and Wildlife Class 6 Notes Geography Chapter 8 | NCERT Solutions India: Climate, Vegetation and Wildlife Chapter 8 |
CBSE Notes for Class 6 History Free Download for All Chapters
Download PDF of NCERT Solutions for Class 6 History
| Chapter Name | CBSE Class 6 History Study Notes | NCERT Solutions Download Class 6 |
| What, Where, How And When? | What, Where, How And When? Class 6 Notes History Chapter 1 | NCERT Solutions What, Where, How And When? Chapter 1 |
| From Gathering To Growing Food | From Gathering To Growing Food Class 6 Notes History Chapter 2 | NCERT Solutions From Gathering To Growing Food Chapter 2 |
| In The Earliest Cities | In The Earliest Cities Class 6 Notes History Chapter 3 | NCERT Solutions In The Earliest Cities Chapter 3 |
| What Books And Burials Tell Us | What Books And Burials Tell Us Class 6 Notes History Chapter 4 | NCERT Solutions What Books And Burials Tell Us Chapter 4 |
| Kingdoms, Kings And An Early Republic | Kingdoms, Kings And An Early Republic Class 6 Notes History Chapter 5 | NCERT Solutions Kingdoms, Kings And An Early Republic Chapter 5 |
| New Questions And Ideas | New Questions And Ideas Class 6 Notes History Chapter 6 | NCERT Solutions New Questions And Ideas Chapter 6 |
| Ashoka, The Emperor Who Gave Up War | Ashoka, The Emperor Who Gave Up War Class 6 Notes History Chapter 7 | NCERT Solutions Ashoka, The Emperor Who Gave Up War Chapter 7 |
| Vital Villages, Thriving Towns | Vital Villages, Thriving Towns Class 6 Notes History Chapter 8 | NCERT Solutions Vital Villages, Thriving Towns Chapter 8 |
| Traders, Kings And Pilgrims | Traders, Kings And Pilgrims Class 6 Notes History Chapter 9 | NCERT Solutions Traders, Kings And Pilgrims Chapter 9 |
| New Empires And Kingdoms | New Empires And Kingdoms Class 6 Notes History Chapter 10 | NCERT Solutions New Empires And Kingdoms Chapter 10 |
| Buildings, Paintings And Books | Buildings, Paintings And Books Class 6 Notes History Chapter 11 | NCERT Solutions Buildings, Paintings And Books Chapter 11 |
CBSE Notes for Class 6 Civics Free Download for All Chapters
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Syllabus Science Olympiad
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