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The MoonThe Moon
Motions of the MoonMotions of the Moon
Moon takes 27 1/3 days to revolve around Moon takes 27 1/3 days to revolve around EarthEarth
Half of the Moon is always lit up by the SunHalf of the Moon is always lit up by the SunOn Earth we always see the same face of On Earth we always see the same face of
the Moonthe MoonMoon takes 29 ½ days to cycle through Moon takes 29 ½ days to cycle through
moon phasesmoon phasesMoon phasesMoon phases – varying amounts of lighted – varying amounts of lighted
moon seen from Earthmoon seen from Earth
Moon Phases
New MoonNew Moon
Waxing CrescentWaxing Crescent
11stst Quarter Quarter
Waxing GibbousWaxing Gibbous
Full MoonFull Moon
Waning GibbousWaning Gibbous
Last (3Last (3rdrd) Quarter) Quarter
Waning CrescentWaning Crescent
Way to Remember the Moon Way to Remember the Moon PhasesPhases
The The leftleft side is side is litlit up up lastlastWaxWax on (Waxing), on (Waxing), WaneWane off (Waning) off (Waning)
Tides MovieWhat are normal tidal ranges?
Where is the tidal range greatest in the world?
What is the tidal range at this place?
TidesTides
TidesTides – cyclic rise and fall of ocean waters – cyclic rise and fall of ocean watersTwo Two High TidesHigh Tides and Two and Two Two Low TidesTwo Low Tides a a
daydayTides change about every 6 hoursTides change about every 6 hoursTides are caused by the gravitational pull Tides are caused by the gravitational pull
of the Moon and Sun on the waterof the Moon and Sun on the waterMoon revolvingMoon revolving around the Earth and around the Earth and
EarthEarth’’s rotations rotation responsible for tide responsible for tide changeschanges
Tidal RangesTidal Ranges
Spring TidesSpring Tides – Greatest tidal range, during – Greatest tidal range, during New and Full Moon phasesNew and Full Moon phases
When Moon and Sun are in straight line When Moon and Sun are in straight line with the Earthwith the Earth
Neap TidesNeap Tides – smaller tidal range, during – smaller tidal range, during First Quarter and Last QuarterFirst Quarter and Last Quarter
When Moon and Sun are pulling at 90 When Moon and Sun are pulling at 90 degree angle from one anotherdegree angle from one another
TidesTides
EclipsesEclipses
Lunar EclipseLunar Eclipse (Luna = Moon) – Moon (Luna = Moon) – Moon moves into shadow of the Earth at moves into shadow of the Earth at Full Full Moon PhaseMoon Phase
Lasts about 100 minutesLasts about 100 minutesSolar EclipseSolar Eclipse (Solar = Sun) – New Moon (Solar = Sun) – New Moon
moves in between Earth and Sun and moves in between Earth and Sun and casts shadow on Earthcasts shadow on Earth’’s surfaces surface
Last about 7 ½ minutes once every 200 Last about 7 ½ minutes once every 200 years for one location on Earthyears for one location on Earth
Lunar EclipseLunar Eclipse
Total Solar EclipseTotal Solar Eclipse
Partial Solar EclipsePartial Solar Eclipse
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