SUMMARY QUESTIONS CAREFULLY ANSWER THES Briefty discuss your understanding E QUE
ID: 152866 • Letter: S
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SUMMARY QUESTIONS CAREFULLY ANSWER THES Briefty discuss your understanding E QUESTIONS THEY SONIFCANTLY EFFECT YOUR GRADE the above observations of each of the following statements using insight gained from 1 The reason for the occurrence of night and day 2. The variation in the length of daylight during the year 3. Why do celestial objects tend to rise in the easten to rise in the eastern section of the horizon and set in the west HINT Review t 4.The appearance of the midnight sun in the arctic regions the earth' s rotation and watch the movement of North America 5. The major cause of the seasons 6. The cause of the phase of the moon. 7. Why the planet Venus shows phases similar to the moon. 8. How eclipses of the sun and moon occur 9. Why the North Star does not change its position in the sky 10. The location of the signs of the zodiac. 11. The cause for sunrise and sunset Extra credit 12 What is the significance of the Tropic of Capricorn and the Tropic of Cancer. 13. How did Ancient people know that the Sun was in a particular Zodiac sign? (Are stars visible in the Daytime?). Solar System Laboratory Manual Page 30Explanation / Answer
1. The occurance of day and night is because of two reasons: the earth's spin around the Sun i.e rotation. (The Earth spins once in 24 hours) and the Earth's tilted axis of 23.5 degree.
2. The variation of daylight across the year is due to two reasons -the tilt in Earth's axis of 23.5 degree and the revolution(responsible for the season).
3.As the Earth spins towards the East, the Sun, Moon and all other celestial bodies move from east to west. This is a relative phenomenan.
4. The polar regions are called the land of the midnight Sun. The reason for this phenomenan is the earth's tilt towards the Sun in summer and away from it in the winter. So the polar regions are exposed to sunlight only for 6 months.
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