Exercise class 7 science chapter 20 in the world of stars | Question answer in the world of stars

Exercise class 7 science chapter 20 in the world of stars | Question answer in the world of stars

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1. Write the proper words in the blanks.
(meridian, horizon, twelve, nine, apparent, celestial, ecliptic)

(a) When seen from a great distance, the sky seems to be touching the ground along a circle. This circle is called the.....

(b) The ......is used while defining the zodiac signs.

(c) Classified according to seasons, one season will have.............. nakshatras.

(d) The rising of the sun in the east and its setting in the west is the....... motion of the sun.

2. A star rises at 8 pm tonight. At what time will it rise after a month? Why?

3. What is meant by 'The sun enters a nakshatra'? It is said that in the rainy season the sun enters the Mrug nakshatra. What does it mean?

4. Answer the following questions.
(a) What is a constellation?
(b) What points should be considered before a sky watch?
(c) Is it wrong to say that the planets, stars and nakshatras affect human life? Why?

5. Write a paragraph on the birth and lifecycle of stars using figure 20.1

Project: Visit a planetarium, collect information and present it in your school on Science day.

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