Group E Phases Of The Moon

Gaby's science homework

Phases of the moon

What are the phases of the moon?
As the moon orbits the earth its shape will appear to change ever so slightly everyday. These changes are the phases of the moon.

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How it works
The moon is a sphere that travels once around the Earth every 29.5 days. As it does, it is illuminated from varying angles by the sun.
At "new moon," the moon is between the Earth and sun, so that the side of the moon facing towards earth receives no direct sunlight, and is lit only by dim sunlight reflected from the Earth.
As it moves around the Earth, the side we can see gradually becomes more illuminated by direct sunlight.
Over the billions of years of the moon's existence, it has moved farther away from the EĀ­arth, and its rate of rotation has also slowed.
The moon is tidally locked with the Earth, which means that the Earth's gravity "drags" the moon to rotate on its axis.
This is why the moon rotates only once per month and why the same side of the moon always faces the Earth.

The different phases of moon
There are eight different phases of the moon there is: the new moon where we can't see any side of the moon,a waxing crescent, the first quarter,a waxing gibbous, a full moon where we can see all of the moon, a waning gibbous, the last quarter and the waning crescent but after this it goes back to a new moon and the cycle starts again.

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