NCERT Class 6 Geography Chapter 3 : MOTIONS OF THE EARTH Notes

NCERT Class 6 Geography Chapter 3 : MOTIONS OF THE EARTH 

NCERT Class 6 Geography Chapter 3: Well if you want to cover up remaining ncert books quickly (less than 5 minutes per chapter) before the upsc prelims.

Or want to quickly revise your syllabus in case you are not able to prepare notes then you will be surely benefited by going through this article.

 
Here is a very short, easy to read and quick to revise notes to help you clear ias exam.

 

The 5 minutes A - Z Guide Of NCERT GEOGRAPHY CLASS 6 CHAPTER 3 SHORT SUMMARY NOTES: MOTIONS OF THE EARTH -TEGOFFICIAL 

 

The 5 minutes A - Z Guide Of NCERT GEOGRAPHY CLASS 6 CHAPTER 3 SHORT SUMMARY NOTES: MOTIONS OF THE EARTH -TEGOFFICIAL

Further to better understand  the chapter, I would recommend you to go through this summary of Chapter 3 Motions of the Earth , Social Science Geography, Class 6.

Let's begin!

As we know that the Earth is also in a state of motion. The Earth we know has two types of motions which are rotation and revolution. 

But what is meant by the terms rotation and revolution?

Rotation is the process of movement of the earth on its own axis. 

 
   Note: The phenomenon which we observe everyday which are Days and Nights are a result of rotation. 

 
On the other hand, the movement of the earth around the Sun in a fixed path (or orbit) is known as revolution. 

 
   Note: The various seasons that we enjoy in a year is the result of revolution of the earth around the sun.  

 
The axis of the earth which is an imaginary line is at an angle of 66.5 degrees S with its orbital plane. 

 

What is circle of illumination?

The circle of illumination is the circle that divides the day from night on the globe.

 
Now let us discuss motion of Revolution:  

 
It is the second motion of the earth around the sun in its orbit.

 
The earth takes 365days and 6hours (which is the true duration of one year) to revolve around the sun.

 
   Note: We consider a year as consisting of 365days only and ignore six hours for the sake of convenience. 

 

But what about the remaining 6 hours?

The remaining six hours saved every year are likely to make one day (24hours) over a span of four years. 

 

This extra day so accumulated after four years, that day is added to the month of February every fourth year.

 
That year, the month of February is of 29 days instead of 28 days. 

 
  Note: This year with 366 days is called a leap year.

 

Do you know the shape of the earth’s orbit around the sun?

The earth moves around the sun in a special shape orbit known as elliptical orbit.

 
Due to the earth’s movement there is variation in the duration of day and night. These are known as summer solstice, winter solstice and equinox.
 
Let’s study about these.

 

What is summer solstice?

The nights are more longer than the days in winter season. This particular position of the earth is called as summer solstice.

 

What is winter solstice?

On 22nd December, direct rays of the sun fall on the Tropic of Capricorn as the South Pole tilts towards it. Due to this there is summer in Southern hemisphere and there is winter in Northern hemisphere. This is known as the winter solstice.

 

What is equinox?

On 21st March and 23rd September, the equator gets the direct sun rays. So, during this period, the whole earth experiences same duration of both days and nights. This is known as an equinox.
 

For more such summaries like this, subscribe to my newsletter.
 
 

Click below for upsc ias syllabus download:

ias preparation syllabus | upsc syllabus | ias syllabus

 

I hope this was helpful for you. Please share it with other people who are also preparing for the upsc ias exam to help them in their preparations.
 
Have any suggestions? Please tell me in the comments below.  

See you the next post, until then

KEEP RISING, KEEP SMILING.

Have a nice day.