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Earth, moon, rotation, orbit, seasons, tides, weather, eclipse, revolution

Earth, moon, rotation, orbit, seasons, tides, weather, eclipse, revolution

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Keynote ch. 12 earth & moon(2).key Presentation Transcript

  • 1. Science Notes: Ch. 12; Earth, Moon, & Sun
  • 2. Science Notes: Ch. 12; Earth, Moon, & Sun
  • 3. RotationAxis of rotation over 1 day.Tilted by about 23-degrees.Results in... Day & night 2 high tides & 2 low tides. Ocean circulation.
  • 4. Revolution/OrbitElliptical over 1 yearResults in... Seasons, Climate, & even Weather Ocean Circulation patterns.
  • 5. Equinoxes: Daytime equals Nightime.Summer Solstice; Winter Solstice;Longest Day in N. Longest Night in N.
  • 6. Temperature & LatitudeActive Art
  • 7. Reasons for the Seasons
  • 8. Gravity & the Moon’s InertiaNewton concluded there are two forces keeping theplanets in orbit: gravity & inertia.
  • 9. The relative motions of theEarth, Sun, and Moon causeTides, Eclipses, Seasons,Weather, Ocean Currents, andthe phases of the Moon.
  • 10. Phases of the Moon
  • 11. The Moon in Motion
  • 12. Moon in Motion... The moon rotates once on its axis in the same amount of time it takes to orbit around the earth; thus a day and a year on the moon are equal: a bit less than 29.5 days.
  • 13. Moon in Motion... Active Art
  • 14. Solar Eclipse
  • 15. Lunar Eclipse
  • 16. Tides
  • 17. Spring & Neap TidesSpring tide happens duringNew Moon and Full Moontwice each month. Greatestdifference betweenconsecutive high & low tides.Neap tide happens during 1stand 3rd quarter twice a month.Least difference betweenconsecutive high & low tides.