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Day & Night, Different Seasons, Moon Appearance Changes

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Fatima I

on 19 May 2011

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Transcript of Day & Night, Different Seasons, Moon Appearance Changes

Day & Night Different Seasons Moon Appearance Changes While we don't feel it the Earth is spinning on it's axis. The Earth rotates once every 24 hours. The side of the Earth that is facing the sun is
experiencing day while the side facing
away from the sun is experiencing night. From the North Pole we
see that as the Earth spins clockwise the daylight (obtained from the sun) moves across the earth from east to west. Seasons occur because the Earth is tilted at an angle on its axis. As the Earth moves around the sun during the year, different parts of the Earth are tilted towards the sun at different times. In the Northern Hemisphere, when the North Pole tilts away from the sun, we have winter. When the North Pole tilts towards the sun we have summer. Between these two seasons are spring and autumn, where the it becomes gradually warmer and colder as it tilts towards or away from the sun. The moon's appearance changes based on its position in its cycle. The sun always lights up one side of the moon. However, we see it in different angles as it spins around the us. Thus, from the earth we can see only a part of the moon the light of the sun is shining on.
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