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Moon Phases. Half of the Moon is always lit up by the sun. As the Moon orbits the Earth, we see different parts of the lighted area.

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Presentation on theme: "Moon Phases. Half of the Moon is always lit up by the sun. As the Moon orbits the Earth, we see different parts of the lighted area."— Presentation transcript:

1 Moon Phases

2 Half of the Moon is always lit up by the sun. As the Moon orbits the Earth, we see different parts of the lighted area. http://www.nasm.si.edu/apollo30th/moontheater/phasepage2.html

3 The revolution of the Moon around the Earth makes the Moon look as if it is changing shape in the sky. http://btc.montana.edu/ceres/html/birthdayphases.htm

4 This is caused by the different angles from which we see the lighted part of the Moon's surface. These are called "phases" of the Moon. http://btc.montana.edu/ceres/html/birthdayphases.htm

5 http://www.niehs.nih.gov/kids/ lunar/why_phases.gif

6 The Moon passes through four major shapes during a cycle that repeats itself every 29.5 days. The phases always follow one another in the same order: New moon First quarter Full moon Third quarter It takes one month for the moon to go around (orbit) the earth.

7 New Moon The lighted side of the Moon faces away from the Earth. This means that the Sun, Earth, and Moon are in a straight line. The Moon is in between the Sun and the Earth. The Moon that we see is dark

8 New Moon

9 First Quarter Moon The right half of the Moon appears lighted and the left side of the Moon appears dark. During the time between the New Moon and the First Quarter Moon, the part of the Moon that appears lighted gets larger and larger every day, and will continue to grow until the Full Moon.

10 First Quarter Moon

11 Full Moon The lighted side of the Moon faces the Earth. This means that the Earth, Sun, and Moon are nearly in a straight line, with the Earth in the middle. The Moon that we see is very bright from the sunlight reflecting off it.

12 Full Moon

13 Third (Last) Quarter Moon Sometimes called Third Quarter. The left half of the Moon appears lighted, and the right side of the Moon appears dark. During the time between the Full Moon and the Last Quarter Moon, the part of the Moon that appears lighted gets smaller and smaller every day. It will continue to shrink until the New Moon, when the cycle starts all over again.

14 Third Quarter Moon

15 There are also four other phases of the Moon sometimes used.

16 Waxing- filling up the moon with light Waning- filling up the moon with darkness Crecent- less than half of moon lit with light Gibbous- more than half of moon lit with light. Waxing- filling up the moon with light Waning- filling up the moon with darkness Crecent- less than half of moon lit with lighst Gibbous- more than half of moon lit with light.

17 Waxing- filling up the moon with light Waning- filling up the moon with darkness Crecent- less than half of moon lit with light Gibbous- more than half of moon lit with light.

18 Moon Movie The movie is an animated GIF created by Antonio Cidadao from a sequence of still images taken during March and April 1998. Copyright Antonio Cidadao.Antonio Cidadao Super awesome moon animaiton!! Click pic--  http://astro.unl.edu/naap/lps/animati ons/lps.swf

19 Waxing Crescent Moon This Moon can be seen after the New Moon, but before the First Quarter Moon. The crescent will grow larger and larger every day, until the Moon looks like the First Quarter Moon. ("Waxing" means increasing, or growing larger.) http://btc.montana.edu/ceres/html/birthdayphases.html

20 Waxing Crescent Moon http://btc.montana.edu/ceres/html/birthdayphases.html

21 Waxing Gibbous Moon This Moon can be seen after the First Quarter Moon, but before the Full Moon. The amount of the Moon that we can see will grow larger and larger every day. ("Waxing" means increasing, or growing larger.) http://btc.montana.edu/ceres/html/birthdayphases.html

22 Waxing Gibbous Moon http://btc.montana.edu/ceres/html/birthdayphases.html

23 Waning Gibbous Moon This Moon can be seen after the Full Moon, but before the Last Quarter Moon. The amount of the Moon that we can see will grow smaller and smaller every day. ("Waning" means decreasing, or growing smaller.) http://btc.montana.edu/ceres/html/birthdayphases.html

24 Waning Gibbous Moon http://btc.montana.edu/ceres/html/birthdayphases.html

25 Waning Crescent Moon This Moon can be seen after the Last Quarter Moon and before the New Moon. The crescent will grow smaller and smaller every day, until the Moon looks like the New Moon. ("Waning" means decreasing, or growing smaller.) http://btc.montana.edu/ceres/html/birthdayphases.html

26 Waning Crescent Moon http://btc.montana.edu/ceres/html/birthdayphases.html

27 http://www.opencourse.info/astronomy/introduction/04.motion_moon/moon_phases.gif

28 Waxing & Waning http://www.nasm.si.edu/apollo30th/moontheater/phasepage4.html

29

30 http://www.calvin.edu/~lmolnar/moon/images/phases.gif

31 MOON QUIZ!! http://starchild.gsfc.nasa.gov/docs/StarChi ld/solar_system_level2/moonlight.html

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