03 22-2012-seasons notes
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03 22-2012-seasons notes

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03 22-2012-seasons notes 03 22-2012-seasons notes Presentation Transcript

  • Page 167 - Seasons• Draw the path of Spring Fall the Earth as it travels around the sun.• Be sure to label/draw Summer Winter Winter Summer – Tilt of axis – Equator – Seasons in both the Northern and Southern Hemisphere Fall____ Spring
  • Seasons notes (page 167)• Cause: – Tilt of the Earth’s axis (23.5 degrees) as Earth revolves around the sun. – The amount of sunlight and the angle of sun an specific area is receiving• Solstices and Equinoxes – Solstices: when the sun’s travels seem to “stand still” then reverse • June Solstice (summer in N, winter in S) • December Solstice (winter in N, summer in S) – Equinoxes: equal amounts of daylight and night time hours • March Equinox (spring/vernal in N, fall/autumnal in S) • September Equinox (fall/autumnal in N, spring/vernal in S)
  • Page 168: What causes moon phases?• We always see the same side of the moon. But, the moon both revolves and rotates. How can we explain why we only see one side of the moon? – The Real Reason: The moon rotates at the same rate it revolves around the Earth, so we only see 1 side. (About 28 days each)