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Sect 9.2
 

Sect 9.2

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    Sect 9.2 Sect 9.2 Presentation Transcript

    • 6 th Grade Science Chapter 9 Sun-Earth-Moon System Notes Section 9.2
      • If the Moon rotates on its axis why can’t we see the back side of the moon?
      • The moon takes 29.5 days to make one rotation on its axis. The moon takes 29.5 days to make one revolution around the Earth.
      • What is the Moon’s most obvious effect on Earth?
      • The Moon’s most obvious effect on Earth is the ocean tides.
      Key Questions 1 The Tadpole Galaxy
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    • Synchronous rotation of the moon
    • The far hemisphere was first photographed by the Soviet Luna 3 probe in 1959, and was first directly observed by human eyes when the Apollo 8 mission orbited the Moon in 1968.
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    • Bay of Fundy - Canada
      • What is a new Moon?
      • A new Moon is when the Moon is between the Earth and the Sun. The Moon is dark and rises and sets with the Sun.
      • What is a full Moon?
      • A full Moon is when the Earth is between the Moon and the Sun. The Moon is completely bright and rises when the Sun sets.
      Key Questions 2 The Sombrero Galaxy
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    • Full Moon Rising
      • What are the phases of the Moon?
      • New, Waxing crescent, 1 st quarter, Waxing gibbous, Full, Waning gibbous, 3 rd quarter, Waning crescent.
      • What causes an eclipse to occur?
      • Eclipses occur when Earth or the Moon temporarily blocks the sunlight from reaching the other- Solar Eclipse and Lunar Eclipse.
      Key Questions 3
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      • What is an umbra and prenumbra?
      • The umbra is the darkest part of the moon’s shadow. The prenumbra is a lighter part of the moon’s shadow.
      • What are the Moon’s surface features?
      • The Moon has craters from impacts with meteorites. It also has dark, flat regions called maria formed from igneous rock.
      Key Questions 4
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    • Project Apollo
      • Explain how the Sun, Moon, and Earth are positioned relative to each other during a new moon and how this alignment changes to produce a full moon.
      • Describe what phase the Moon must be in to have a lunar eclipse. A solar eclipse.
      • Define the terms umbra and penumbra and explain how they relate to eclipses.
      • Explain why lunar eclipses are more common than solar eclipses and why so few people ever have a chance to view a total solar eclipse.
      • What do the surface features and their distribution on the Moon’s surface tell you about its history?
      Questions Section 9.2