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By Evan Shillington. The Moon’s Orbit The moon orbits around Earth like the Earth orbits around...
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Transcript of By Evan Shillington. The Moon’s Orbit The moon orbits around Earth like the Earth orbits around...
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By Evan ShillingtonBy Evan Shillington
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The Moon’s OrbitThe Moon’s Orbit
The moon orbits around Earth like The moon orbits around Earth like the Earth orbits around the sunthe Earth orbits around the sun
The moon rises east and sets westThe moon rises east and sets westRises at different times and looks Rises at different times and looks
different each night. different each night.
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Moon’s PhasesMoon’s Phases
Moon phases are daily changesMoon phases are daily changes in in moon’s appearance. moon’s appearance.
The amount of sunlight on moon The amount of sunlight on moon causes moon to wax and wanecauses moon to wax and wane
Happens for 2 reasons. Happens for 2 reasons.
1.1. Moon is seen by reflected sunlightMoon is seen by reflected sunlight
2.2. Moon is in orbit around earth.Moon is in orbit around earth.
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Waxing and WaningWaxing and Waning
Waxing-Increasing of the moon’s Waxing-Increasing of the moon’s visible illuminated surface, from a new visible illuminated surface, from a new moon to a full moon. moon to a full moon.
Waning-The decreasing of the moon’s Waning-The decreasing of the moon’s visible illuminated surface, from a full visible illuminated surface, from a full moon to a new moon. moon to a new moon.
Blue moon is the 2Blue moon is the 2ndnd New Moon of a New Moon of a monthmonth
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Waxing and Waning
The moon phases
http://imagiware.com/astro/moon.cgi
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Lunar MonthsLunar Months
The time from on new moon to the The time from on new moon to the next new moon.next new moon.
A lunar month lasts 29.5 days.A lunar month lasts 29.5 days.
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TidesTidesTide-daily rise and fall of ocean change Tide-daily rise and fall of ocean change
every 6hrs and 12.5minsevery 6hrs and 12.5minsCause: Sir Isaac Newton- Gravity pull Cause: Sir Isaac Newton- Gravity pull
from the moon.from the moon.High Tide- Water on Earth is pulled High Tide- Water on Earth is pulled
toward the moon toward the moon Indirect High Tide-Earth is pulled away Indirect High Tide-Earth is pulled away
from water on far side and leaves water from water on far side and leaves water behind.behind.
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Moon’s Orbit
Moon’s Gravity
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Neap TidesNeap Tides
Neap Tide- When moon is 90Neap Tide- When moon is 90oo away from the sun. The moon’s away from the sun. The moon’s gravity and sun’s gravity subtract gravity and sun’s gravity subtract and create a weak tide. (occurs and create a weak tide. (occurs during quarter moon phases. Twice during quarter moon phases. Twice a month.)a month.)
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Spring TidesSpring Tides
Spring Tides- When moon is Spring Tides- When moon is aligned with the sun and both their aligned with the sun and both their gravity’s combine and make a gravity’s combine and make a strong tide. (occurs during new strong tide. (occurs during new moon + full moon phases. Twice a moon + full moon phases. Twice a month)month)
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Tidal RangeTidal Range
Difference in level between low tides Difference in level between low tides and high tidesand high tides
Noticeable tidal ranges occur on shore Noticeable tidal ranges occur on shore lines.lines.
V-shaped bay’s have big tidal ranges V-shaped bay’s have big tidal ranges because the water pile in the narrow because the water pile in the narrow part of the V during high tides and part of the V during high tides and empties during low tides.empties during low tides.
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Bay of Fundy during high tide.
Bay of Fundy during low tide
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By Evan ShillingtonBy Evan Shillington
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EclipsesEclipses
Umbra-the total shadow of Umbra-the total shadow of eclipseeclipse
Penumbra-the partial shadow of Penumbra-the partial shadow of eclipseeclipse
EclipsesEclipses
Umbra
Penumbra
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Solar EclipseSolar Eclipse
Occurs when moon’s umbra Occurs when moon’s umbra reaches Earth’s surfacereaches Earth’s surface
Umbra is where the Earth will have Umbra is where the Earth will have a total solar eclipse.a total solar eclipse.
Penumbra is where the Earth will Penumbra is where the Earth will have a partial eclipse.have a partial eclipse.
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Lunar EclipseLunar Eclipse
Occurs when moon goes into Earth’s Occurs when moon goes into Earth’s umbra.umbra.
Occurs about once a year and Occurs about once a year and during a full moon phase. during a full moon phase.
A lunar eclipse can be seen from the A lunar eclipse can be seen from the half of the earth facing the moon.half of the earth facing the moon.
Can last up to 2 hrs.Can last up to 2 hrs.
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Solar Eclipse
Lunar Eclipse
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BibliographyBibliography
Cooley, Keith. "Moon Tides: How Cooley, Keith. "Moon Tides: How the Moon Affects Ocean Tides." 24 the Moon Affects Ocean Tides." 24 May 2006 May 2006 <http://home.hiwaay.net/~krcool/Ast<http://home.hiwaay.net/~krcool/Astro/moon/moontides/>. ro/moon/moontides/>.
Earth ScienceEarth Science. Canada: D.C. Heath . Canada: D.C. Heath and Company, a Division of and Company, a Division of Houghton Mifflin Company, 1997. Houghton Mifflin Company, 1997. 444-451. 444-451.
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ContinueContinue
Lowenthal, James. Lowenthal, James. The Hidden The Hidden Sun: Solar and Sun: Solar and AstrophotographyAstrophotography. New York: . New York: Avon Books, 1984. Avon Books, 1984.
"Lunar Phase." "Lunar Phase." WikipediaWikipedia. 22 . 22 May 2006. 24 May 2006 May 2006. 24 May 2006 <http://en.wikipedia.org/wiki/Mo<http://en.wikipedia.org/wiki/Moon_phases>.on_phases>.
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