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Eclipses

Eclipses. Page 564. The Next Lunar Eclipse will be September 28th. https://www.youtube.com/watch?v=j1nVsCcKHwI. POM Chart (in your note book). Model it. Use the Sun, Earth, Moon model to demonstrate how the moon can “disappear” from view and return to view later. Lunar Eclipse.

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Eclipses

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  1. Eclipses Page 564

  2. The Next Lunar Eclipse will be September 28th https://www.youtube.com/watch?v=j1nVsCcKHwI

  3. POM Chart (in your note book)

  4. Model it • Use the Sun, Earth, Moon model to demonstrate how the moon can “disappear” from view and return to view later.

  5. Lunar Eclipse • Occurs at Full Moon • Sun and moon are in OPPOSITE directions from earth • The moon moves into the earth’s shadow, blocking the Sun from shining on the moon and it darkens. • Visible to all on night side of earth • Last 2-3 hours

  6. Pg. 564

  7. Lunar eclipse • The curved edge of the Earth’s shadow begins to cut across the face of the moon • Until the entire moon’s face is covered • The moon takes on a red glow due to refraction (bending) of the sunlight through the earth’s atmosphere.

  8. Model it Watch the eclipse in Australia https://www.youtube.com/watch?v=2lHb5ruGUyw https://www.youtube.com/watch?v=MWBmKQRQsks Using the sun, Earth Moon model, show how the Sun can completely disappear from view * Next Solar eclipse is Aug 21, 2017

  9. Solar Eclipse • Occurs when sun and moon are in the same direction from Earth • Moon passes directly in front of the Sun • Occurs during the day, with a new moon • Turns day into night – sunlight is reduced to almost nothing! • Lasts a few minutes • Only a small area can see the total eclipse

  10. Page 565 • Umbra: • Point of the sun’s shadow • 270 km wide shadow area (162 miles) • Shadow moves across the earth at 1700km/hr • Solar eclipse lasts only 2.5 min. • Penumbra: • Wider part of the sun’s shadow • Area of partial eclipse

  11. Corona:as the moon covers the body of the sun, the sun’s atmosphere is seen as a glowing ‘crown’

  12. Lunar or Solar eclipse?? Is the moon causing a shadow or in a shadow?

  13. The moon orbits the Earth every 28 days • So is there an eclipse every month? • Look at some Data on eclipses • Look at a Model: http://highered.mheducation.com/olcweb/cgi/pluginpop.cgi?it=swf::800::600::/sites/dl/free/007299181x/78778/Eclipses_Nav.swf::Eclipse%20Interactive

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