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W.O.T.D : Eclipse: The partial or complete obscuring of one celestial body by another; to darken

Ms. Ware- Earth Science-. W.O.T.D : Eclipse: The partial or complete obscuring of one celestial body by another; to darken. LT : I can explain what causes tides. I can explain the difference between a solar and lunar eclipse. DO NOW: Shade in the moon phases on the

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W.O.T.D : Eclipse: The partial or complete obscuring of one celestial body by another; to darken

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  1. Ms. Ware- Earth Science- W.O.T.D: Eclipse: The partial or complete obscuring of one celestial body by another; to darken LT: I can explain what causes tides. I can explain the difference between a solar and lunar eclipse DO NOW: Shade in the moon phases on the Worksheet I have given you. HW: Finish Crossword puzzle

  2. Tides

  3. What causes tides?

  4. Caused by the gravitational pull of the moon & sun

  5. Based on the diagram, which types of tides have a larger range? SPRING TIDES

  6. During which phases of the moon do neap and spring tides occur?

  7. 1st & 3rd Quarters Neap?

  8. New or Full Moon Spring?

  9. How many tides a day? 2 high tides 2 low tides

  10. Why are there not exactly 12 hours between tides? because the moon revolves around the Earth while the Earth rotates

  11. Tides

  12. Ms. Ware~ Earth Science~ 11/10/09 W.O.T.D.: Insolation: Incoming solar radiation; rays of heat from the sun L.T. I can explain the difference between solar and lunar eclipses. I can explain what causes seasons Do Now: Label the phases of the moon on the worksheet (use terms like waxing gibbous, waning crescent, new moon, etc.)

  13. What’s the difference between solar and lunar eclipses? Solar Lunar Moon blocks Sun from Being seen moon goes into Earth’s shadow

  14. Solar Eclipse What phase? New Moon The next solar ecllipse:July 2010

  15. http://www.bbc.co.uk/science/space/solarsystem/sun/solareclipse.shtmlhttp://www.bbc.co.uk/science/space/solarsystem/sun/solareclipse.shtml Video on solar eclipse: http://news.nationalgeographic.com/news/2009/07/090722-eclipse-video-ap.html

  16. Lunar Eclipse What phase? Full Moon Next partial lunar: Dec 31st, Full: Dec 21st 2010

  17. Lunar Eclipse 2010

  18. Why don’t we have solar and lunar eclipses every month? The moon’s orbit is tilted 5° from the Earth’s orbit.

  19. What causes an eclipse? Sun Solar Eclipse Lunar Eclipse Earth

  20. In notebooks- Write the difference between a solar and lunar eclipse…

  21. Seasons What causes the seasons? http://nix.ksc.nasa.gov/info

  22. True color images December March June September http://www.nasa.gov/vision/earth/features/blue_marble.html

  23. What Causes Earth’s Seasons? • Earth’s axis is tilted 23.5 degrees – it always points in the same direction (Polaris, the North Star) as we orbit our Sun once a year • This tilt causes the seasons! http://www.lpi.usra.edu/education/skytellers/seasons/about.shtml

  24. Northern Hemisphere Summer Insolation: INcoming SOLar raDIATION More daylight hours, more direct sunlight http://www.lpi.usra.edu/education/skytellers/seasons/about.shtml

  25. Animation • http://esminfo.prenhall.com/science/geoanimations/animations/01_EarthSun_E2.html

  26. Earth’s orbit is almost a perfect circle • Earth is CLOSEST to our Sun (91 million miles) in winter—January 3 • Earth is farthest from on our Sun (94 million miles) in summer –July 4

  27. Figure 6h-6: During the equinoxes, the axis of the Earth is not tilted toward or away from the Sun and the circle of illumination cuts through the poles. This situation does not suggest that the 23.5 degree tilt of the Earth no longer exists. The vantage point of this graphic shows that the Earth's axis is inclined 23.5 degrees toward the viewer for both dates (see Figures 6h-3 and 6h-4). The red circles shown in the graphic are the Arctic Circle.

  28. C. The four seasons do not occur in the tropics. These areas receive nearly direct sunlight year-round, so temperatures are high and consistent throughout the year.

  29. NEW PROBLEM!!!! AHHHH!!! How is it that Alaska is dark from… November 18th- January 23rd

  30. Final Summary: Answer these questions in your notebook • What causes the seasons? • At the equator, there are no summers or winters, only wet and dry seasons. Why is this so? • If the earth were not tilted in its orbit, how would the climate and seasons be affected at the equator? Between 30 degrees north and south latitude?

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