Moon Phases.

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Presentation transcript:

Moon Phases

Moon Phase Song http://www.youtube.com/watch?v=HkvlrWpsnuQ http://www.youtube.com/watch?v=79M2lSVZiY4

Always view the moon from RIGHT to LEFT

Half of the Moon is always lit up by the sun Half of the Moon is always lit up by the sun. We always see the same side of the moon because it has the same period of rotation and revolution. As the Moon orbits the Earth, we see different parts of the lighted area. http://www.nasm.si.edu/apollo30th/moontheater/phasepage2.html

Lunar cycle = new moon to new moon takes 29.5 days The moon takes 27.3 days to complete one revolution around the Earth and one rotation on its axis. So it’s period of revolution and rotation are the same.

Moon phases = as the moon revolves around the Earth it reflects sunlight at different angles and it appears as if it is changing shape in the sky. http://btc.montana.edu/ceres/html/birthdayphases.htm

These phases happen because of the different angles from which we see the lit part of the Moon's surface. http://btc.montana.edu/ceres/html/birthdayphases.htm

First quarter (Waxing quarter) Last quarter (Waning quarter) Full moon The Moon passes through four major shapes (8 total) during a lunar cycle that repeats itself every 29.5 days. The phases always follow one another in the same order: New moon First quarter (Waxing quarter) Last quarter (Waning quarter) Full moon

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

New Moon

First Quarter (Waxing 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.

First Quarter Moon

Last Quarter (Waning 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.

Third Quarter Moon

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.

Full Moon

There are also four other phases of the moon seen in between the four major phases.

("Waxing" means increasing, or growing larger.) 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

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

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

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

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

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

("Waning" means decreasing, or growing smaller.) 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

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

SUNLIGHT SUNLIGHT

Moon Movie http://www.neok12.com/php/watch.php?v=zX5c60455063656c6c595c41&t=Moon