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Moon Phases. I. The Moon 1.The moon rotates once on its axis in the same amt of time as it revolves around Earth. (every 27.3 days) 2.This is why a day.

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Presentation on theme: "Moon Phases. I. The Moon 1.The moon rotates once on its axis in the same amt of time as it revolves around Earth. (every 27.3 days) 2.This is why a day."— Presentation transcript:

1 Moon Phases

2 I. The Moon 1.The moon rotates once on its axis in the same amt of time as it revolves around Earth. (every 27.3 days) 2.This is why a day and a year on the moon are the same length. 3.The same side of the moon always faces Earth. 4.The moon does not give off its own light. It reflects light from the sun.

3 Moon Movement

4 1.Phases, eclipses and tides are caused by changes in position of the moon, Earth, and the sun. 2.Phases are the different shapes of the moon you see from Earth. 3.Moon goes through an entire set of phases every 29.5 days. 4.The phase you see depends on how much of the sunlit side of moon faces Earth.

5 A. Phases 1. 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

6 2. 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

7 3. 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

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

9 4. 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 Third quarter Full moon

10 Moon Phases

11 A. New Moon 1.The lighted side of the Moon faces away from the Earth. 2.This means that the Sun, Earth, and Moon are almost in a straight line, with the Moon in between the Sun and the Earth. 3.The Moon that we see looks very dark

12 New Moon

13 B. First Quarter Moon 1.The right half of the Moon appears lighted and the left side of the Moon appears dark. 2.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.

14 First Quarter Moon

15 C. Third (Last) Quarter Moon 1.Sometimes called Third Quarter. 2.The left half of the Moon appears lighted, and the right side of the Moon appears dark. 3.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. 4.It will continue to shrink until the New Moon, when the cycle starts all over again.

16

17 Third Quarter Moon

18 D. Full Moon 1.The lighted side of the Moon faces the Earth. 2.This means that the Earth, Sun, and Moon are nearly in a straight line, with the Earth in the middle. 3.The Moon that we see is very bright from the sunlight reflecting off it.

19 Full Moon

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

21 E. Waxing Crescent Moon 1.This Moon can be seen after the New Moon, but before the First Quarter Moon. 2.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

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

23 F. Waxing Gibbous Moon 1.This Moon can be seen after the First Quarter Moon, but before the Full Moon. 2.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

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

25 G. Waning Gibbous Moon 1.This Moon can be seen after the Full Moon, but before the Last Quarter Moon. 2.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

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

27 H. Waning Crescent Moon 1.This Moon can be seen after the Last Quarter Moon and before the New Moon. 2.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

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

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

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

31

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

33 http://www.youtube.com/watch?v=7vUObZ wLJ8Ahttp://www.youtube.com/watch?v=7vUObZ wLJ8A http://www.youtube.com/watch?v=79M2lS VZiY4http://www.youtube.com/watch?v=79M2lS VZiY4 http://www.youtube.com/watch?v=LaqrQy Tm9B4http://www.youtube.com/watch?v=LaqrQy Tm9B4 Bill Nye

34 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 http://aa.usno.navy.mil/faq/docs/mo on_phases.html

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

36 Draw each moon phase in order beginning with the new moon. Label each phase.

37 Moon Phases Song Mr. Parr http://www.youtube.com/watch?v=HkvlrW psnuQ

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