Monday 7 November 2011

PHASES OF THE MOON

1. Only the part of the moon that faces the Sun can be seen.

2. When the Moon revolves around Earth, the part of the Moon's surface that receives sunlight will 
    change.

3. That is why the shape of the Moon that we can see always changes.

4. The different shapes of the Moon are known as phases of the Moon.

5. The phases of the Moon consists of:

    (a) New moon
  • The surface of the Moon that is not illuminated is facing Earth.
  • The Moon cannot be seen from earth. 


New Moon


    (b) Crescent  
  

Crescent


    (c) Half moon ( First quarter )

  • The surface of the Moon that is illuminated and facing Earth increases.
  • The Moon looks bigger and rounder.     

Half moon (First quarter)

    (d) Gibbous

  • The surface of the Moon that is illuminated and facing Earth increases.
  • The Moon looks bigger and rounder.

Gibbous

    (e) full moon

  • The whole surface of the Moon that receives sunlight faces Earth.
  • The Moon looks big and round.

       

Full moon


    (f) Gibbous


Gibbous

    (g) Half Moon ( Last quarter )

  • The surface of the Moon that is illuminated and facing Earth decreases.
  • The Moon looks smaller.


Half Moon (Last quarter)

    (h) Crescent


Crescent

6. The Moon takes about 29.5 days to return to the same phase.

7. The Lunar Calendar is a calendar created based on the revolution of the Moon around Earth,
    following the phases of the Moon.

8. According at the Lunar Calendar, the Moon experiences full moon on the 15th of every month.
 

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