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The phase of the moon is how much of the moon appears to us on Earth to be lit up by the sun. Half of the moon is always lit up by the sun, except during an eclipse, but we only see a portion that's lit up. This is the phase of the moon. Around once per month, every 29.53 days to be exact, the phases of the moon make a complete cycle.


PHASES OF THE MOON DEFINITION. The portion of the moon that we can see from Earth on any given night is called the moon’s phase.As the moon orbits around the Earth, sunlight is reflected off the moon’s surface and that light reaches us on Earth.


The different phases of the moon are caused by the angle from which an observer on earth can see the moon illuminated by the sun as it orbits our planet. As the moon makes its way around the earth a person can look up in the sky and see various fractions of its surface reflecting sunlight. While there is always half ...


Phases of the Moon: Lesson for Kids. ... Moon phase is the appearance of the moon in the night sky. The moon has these various phases because of the positioning of the earth, moon, and sun in ...


The different ways the Moon looks are called lunar phases and there are four of them: new moon, first quarter, full moon, and last quarter. The Moon appears to change shape because of lunar phases.


Start studying Moon Phases (with pictures and definitions.). Learn vocabulary, terms, and more with flashcards, games, and other study tools.


Lunar phase or phases of moon indicates the illuminated portion of the moon which a person observes from the earth.The revolution of moon around earth makes it appear like it is changing shapes ...


The Moon is a large natural object that orbits, or travels around, Earth . After the Sun it is the brightest object in the sky.


Moon definition is - the earth's natural satellite that shines by the sun's reflected light, revolves about the earth from west to east in about 291/2 days with reference to the sun or about 271/3 days with reference to the stars, and has a diameter of 2160 miles (3475 kilometers), a mean distance from the earth of about 238,900 miles (384,400 kilometers), and a mass about one eightieth th...


The moon is one-half illuminated by the sun. Occurs when the moon's illumination is increasing, Waxing Gibbous: The moon is more than one-half illuminated by the sun but not completely illuminated. Occurs when the moon's illumination is increasing, Full Moon: The moon is totally visible in the sky. Except during a lunar eclipse, Waning Gibbous