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A look at the movements of the Moon
Moon Phases A look at the movements of the Moon Leesa Hubbard Teacher in Residence Sally Ride Science
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Movements of the Moon Revolution – Moon orbits the Earth every 271/3 days The moon rises in the east and sets in the west The moon rises and sets 50 minutes later each day Rotation – Moon turns on its axis every 27 days Same side of Moon always faces Earth
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It’s Just a Phase Moonlight is reflected sunlight
Half the moon’s surface is always reflecting light From Earth we see different amounts of the Moon’s lit surface The amount seen is called a “phase”
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Limb Terminator The line where the surface of the moon meets the sky.
The imaginary line between the reflected light and shadow.
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Waxing and Waning New moon Waxing Crescent moon First Quarter moon
Waxing Gibbous moon Full moon Waning Gibbous moon Third Quarter moon Waning Crescent moon
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FOUR MAIN SHAPES FULL Four Basic Shapes CRESCENT GIBBOUS QUARTER
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Orbits (revolves around) Earth every 27.3 days
Elliptical orbit (not a perfect circle) About 384,000 km (240,000 miles) from Earth 360,000 km ,000 km 224,000 miles ,000 miles
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Moon rise times: The New Moon always rises at sunrise
Moon rise times: The New Moon always rises at sunrise. The first quarter Moon rises at noon. The Full Moon rises at sunset. The last quarter Moon rises at midnight. Moonrise takes place about 50 minutes later each day than the day before.
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The Lunar Challenge!
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Name this phase! Full Moon What time does this phase rise and set?
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Is this line the limb or terminator?
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Name this phase! First Quarter
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Name this phase! Waxing Crescent
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Name this phase! Waning Gibbous
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Name this phase! Third Quarter
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From what direction does the moon rise?
The East
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Name this phase! Waxing Gibbous
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Name this phase! Waning Crescent
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Is this line the limb or the terminator?
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Name this phase! Look closely! Waxing Gibbous
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Name this phase! Full Moon
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Name this phase! New Moon
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Does the moon rise or set in the west?
It sets in the west.
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Name this phase! Waning Gibbous
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Name this phase! Waning Crescent
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Photo resources http://www.nasm.si.edu/apollo/AS15/a15images.htm
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More photo resources
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