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Moon Phases Chapter 2 Section 3. Moonlight  Moonlight is really light from the Sun reflected by the Moon’s surface.  Areas that sunlight does not reach.

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Presentation on theme: "Moon Phases Chapter 2 Section 3. Moonlight  Moonlight is really light from the Sun reflected by the Moon’s surface.  Areas that sunlight does not reach."— Presentation transcript:

1 Moon Phases Chapter 2 Section 3

2 Moonlight  Moonlight is really light from the Sun reflected by the Moon’s surface.  Areas that sunlight does not reach look dark.

3 Lunar Phases  When you look at the Moon, you see a bright shape that is the lit part of the near side of the Moon.  Lunar phases: are the patterns of lit an unlit portions of the Moon that you see from Earth.

4 Lunar Phases

5 Lunar Cycle  It takes the Moon 4 weeks to go through it’s entire lunar cycle.

6 Waxing vs. Waning  Waxing Moon: Growing; the lighted part of the moon is getting larger.  The Moon waxes until it gets to a full moon, or half way through the cycle.  Waning Moon: Shrinking; the lighted part of the Moon is getting smaller

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8 Phases  Quarter: when half of the Moon is lit up  Crescent: when less then half of the Moon is lit up  Gibbous: when more then half of the Moon is lit up

9 Positions of Sun, Earth, Moon Waxing (growing)  New Moon: Sun, Moon, Earth; the far side of the moon is lit, near side is dark  Waxing Crescent: Moon has moved in orbit so some sunlight falls on near side  First Quarter: (looks ½) Moon is 90 angle to Sun  Waxing Gibbous: between ½ and full  Full: Sun, Earth, Moon; entire near side is lit

10 Positions of Sun, Earth, Moon Waning (shrinking)  Full: Sun, Earth, Moon; entire near side is lit  Waning Gibbous: shrinking to 3 rd quarter (looks ½)  3 rd Quarter: Moon is 90 angle from sun again so the other ½ is lit  Waning Crescent: less of moon is lit by sun  New Moon: Sun, Moon, Earth; far side is lit

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