6th Class NCERT Geography Chapter 1 Notes

 6th Class NCERT Geography Chapter 1  Notes

1. You can see full moon only once in about a month's time . It is called Full moon night or Poornima.

2.The sun, the Moon and all those objects shinning in the night sky called Celestial Bodies.

3. STARS

• They are made of Gas
• Some celestial bodies are very big and hot.
• They have their own heat and light.

4. CONSTELLATIONS

• Watching night sky you may notice various patterns formed by different groups of starts.
• Ursa Major or Big Bear , Saptarishi is such Constellation.

5. Pole Star 

• In Ancient times ,people used to determine directions during the night with the help of start.
• North star indicate North direction, the name Pole Star

6. Planets

• Some celestial bodies not have own heat and light.
• They are lit by the light of the stars.
• Word planet comes from Greek word "Planetai" means "Wanderers".
• It gets all hit and light from the sun.
• There are 8 Planets in solar system.
• Distance of sun there name - Mercury , Venus , Earth , Mars , Jupiter , Saturn , Uranus and Neptune .

7. Moon is a Satellite.

8. The SUN

• Centre of the solar system.
• It is huge and made up extremely hot gases.
• It is ultimate source of heat and light for the solar system.
• The sun is about 150 million KM away from the Earth.

9. ORBITS

• Solar system all 8 planet move around the sun  in fixed paths.
• Mercury takes 88 day for one Orbits.
• Venus other name Earth's -twin, because size and shape similar to the earth.

10. The Earth

• 3rd nearest planet to the sun.
• In size it is the 5th largest planet.
• Earth neither too hot nor too cold .
• It has water and Air , life survival gas Oxygen , so survival is possible .
• It is appears blue , because two third surface covered by water ,also called Blue Planet.

11. The Moon

• It is the only one satellite of Earth.
• It is about 384400 KM away from earth .
• The Moon moves around the earth 27 days.

12. Galaxy

• Huge system of billion of stars , cloud ,dust and gases .
• Million of such galaxy make Universe

13. Asteroids

• There are numerous tiny bodies which also move around the sun. These bodies are called Asteroids.
• They are found between the orbits of Mars and Jupiter.

14. Meteoroids

• The small pieces of rocks which move around the sun are called meteoroids.