Changes

* Despite being a very average star, the Sun is of immense importance to us, because our lives depend upon its light and heat. Without it life on Earth would soon end. In addition, the Sun is very important to astronomers, because being by far the closest star, we can study it in far more detail than any other star.

* Despite being a very average star, the Sun is of immense importance to us, because our lives depend upon its light and heat. Without it life on Earth would soon end. In addition, the Sun is very important to astronomers, because being by far the closest star, we can study it in far more detail than any other star.

Explains the main features of the Sun such as Outer and Internal structure of The Sun.

#Explains the main features of the Sun such as Outer and Internal structure of The Sun.

 

#Draws the diagram showing the structure of The Sun.

Draws the diagram showing the structure of The Sun.

#Explains the reason for enormous energy output of The Sun.

 

#Explains reason for calling the Sun as the laboratory for studying the other stars.

Explains the reason for enormous energy output of The Sun.

#States the Kepler's laws of Planetary motion.

 

Explains reason for calling the Sun as the laboratory for studying the other stars.

 

States the Kepler's laws of Planetary motion.

===Notes for teachers===

===Notes for teachers===