Our Closest Neighbor Bb

Our Closest Neighbor Bb - Our Closest Neighbor Lecture 3B...

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Our Closest Neighbor Lecture 3B – 9/22/10 How are the motions and positions of Earth and the Sun connected to what happens on Earth? Earth’s rotation on its axis determines the length of the day. Earth’s orbit around the Sun determines the length of the year. The tilt of Earth’s rotational axis with respect to the plane of Earth’s orbit causes the seasons. Moon Phase Names New Moon Waxing Crescent First Quarter Waxing Gibbous Full Moon Waning Gibbous Third Quarter Waning Crescent
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How long does it take to complete the full cycle of Moon Phases? A. About a day B. About a week C. About a month D. About a year E. None of the above Let’s Watch some Moon Phase Animations! Pay attention to where the Moon, Sun and Earth are located and how the Moon appears from Earth at each of these positions. Look at how much of the Moon is illuminated when at each position.
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Our Closest Neighbor Bb - Our Closest Neighbor Lecture 3B...

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