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By Evan Shillington

Phases of the Moon And Thier Impact on Earth. By Evan Shillington. The Moon’s Orbit. The moon orbits around Earth like the Earth orbits around the sun The moon rises east and sets west Rises at different times and looks different each night. Moon’s Phases.

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By Evan Shillington

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  1. Phases of the Moon And Thier Impact on Earth By Evan Shillington

  2. The Moon’s Orbit • The moon orbits around Earth like the Earth orbits around the sun • The moon rises east and sets west • Rises at different times and looks different each night.

  3. Moon’s Phases • Moon phases are daily changesin moon’s appearance. • The amount of sunlight on moon causes moon to wax and wane • Happens for 2 reasons. • Moon is seen by reflected sunlight • Moon is in orbit around earth.

  4. Waxing and Waning • Waxing-Increasing of the moon’s visible illuminated surface, from a new moon to a full moon. • Waning-The decreasing of the moon’s visible illuminated surface, from a full moon to a new moon. • Blue moon is the 2nd New Moon of a month

  5. Waxingand Waning The moon phases http://imagiware.com/astro/moon.cgi

  6. Lunar Months • The time from on new moon to the next new moon. • A lunar month lasts 29.5 days.

  7. Tides • Tide-daily rise and fall of ocean change every 6hrs and 12.5mins • Cause: Sir Isaac Newton- Gravity pull from the moon. • High Tide- Water on Earth is pulled toward the moon • Indirect High Tide-Earth is pulled away from water on far side and leaves water behind.

  8. Moon’s Orbit Low Tide Moon’s Gravity Indirect High Tide High Tide Low Tide

  9. Neap Tide- When moon is 90o away from the sun. The moon’s gravity and sun’s gravity subtract and create a weak tide. (occurs during quarter moon phases. Twice a month.) Neap Tides

  10. Spring Tides • Spring Tides- When moon is aligned with the sun and both their gravity’s combine and make a strong tide. (occurs during new moon + full moon phases. Twice a month)

  11. Tidal Range • Difference in level between low tides and high tides • Noticeable tidal ranges occur on shore lines. • V-shaped bay’s have big tidal ranges because the water pile in the narrow part of the V during high tides and empties during low tides.

  12. Bay of Fundy during high tide. Bay of Fundy during low tide

  13. Solar and Lunar Eclipse By Evan Shillington

  14. Eclipses Eclipses • Umbra-the total shadow of eclipse • Penumbra-the partial shadow of eclipse Penumbra Umbra

  15. Solar Eclipse • Occurs when moon’s umbra reaches Earth’s surface • Umbra is where the Earth will have a total solar eclipse. • Penumbra is where the Earth will have a partial eclipse.

  16. Lunar Eclipse • Occurs when moon goes into Earth’s umbra. • Occurs about once a year and during a full moon phase. • A lunar eclipse can be seen from the half of the earth facing the moon. • Can last up to 2 hrs.

  17. Solar Eclipse Lunar Eclipse

  18. Bibliography • Cooley, Keith. "Moon Tides: How the Moon Affects Ocean Tides." 24 May 2006 <http://home.hiwaay.net/~krcool/Astro/moon/moontides/>. • Earth Science. Canada: D.C. Heath and Company, a Division of Houghton Mifflin Company, 1997. 444-451.

  19. Continue • Lowenthal, James. The Hidden Sun: Solar and Astrophotography. New York: Avon Books, 1984. • "Lunar Phase." Wikipedia. 22 May 2006. 24 May 2006 <http://en.wikipedia.org/wiki/Moon_phases>.

  20. The End

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