17. Stars And The Solar System-Additional Questions With Solutions Science Class 8 In English
Last Updated : 06 March 2026
Explore science Solutions for Class 8 Chapter 17. Stars And The Solar System Topic Additional Questions With Solutions in English medium.
17. Stars And The Solar System-Additional Questions With Solutions Science Class 8 In English
Last Updated : 06 March 2026
17. Stars And The Solar System-Additional Questions With Solutions Science Class 8 In English
17. Stars And The Solar System
Additional Questions With Solutions
Additional Questions With Solutions
Que: What are celestial object?
Ans: The stars, the planets, the moon and many other objects in the sky are called celestial objects.
Que: Why the village skylooks clear from the night sky inbig cities?
Ans: In big cities is rarely clear due to bright light, smoke and dust, sky. There are no bright lights in the village sky and the atmosphere is clear.
Que: Define full moon day.
Ans: The day on which the whole disc of the moon is visible is known as the full moon day.
Que: What are phages of the moon?
Ans: The various shapes of the bright part of the moon as seen during a month are called phases of the moon.
Que: What is the new moon day?
Ans: On the fifteenth day the moon is not visible. This day is known as the new moon day.
Que: What is the crescent moon?
Ans: The next day of the new moon day, only a small portion of the moon appears in the sky. This is known as the crescent moon.
Que: The moon has not it own light as stars but how do we able to see the moon?
Ans: We see the moon because the sunlight falling on it gets reflected towards us.
Que: Why is the life not possible on the moon?
Ans: The moon has no useful substances for living like atmosphere and it has no water.
Que: Define Light year?
Ans: The distance travelled by light in one year known as light year.
Que: What is a constellation?
Ans: The stars forming a group that has a recognisable shape is called a constellation.
Que: Write the situation of pole stare.
Ans: The Pole star lies close to the axis of rotation of the Earth.
Que: When can you see the Great bear constellation or Saptarishi Tara Mandal?
Ans: We can see Great bear constellation or Saptarishi Tara Mandal during the summer time in the early part of the night.
Que: Which constellation moves around the pole star?
Ans: Ursa Major Or Great Bear.
Que: When can the Orion see in the sky?
Ans: Orion is another well-known constellation that can be seen during winter in the late evenings
Que: What is satellite?
Ans: A body revolving around another body is called a satellite.
Que : Write the type of satellites.
Ans: There are two type of satellites.
1. Natural satellite – The moon
2. Artificial Satelite – Aryabhatt, INSAT, IRS and KalpanAns : I etc.
Que: Name the first natural satellite of India.
Ans: Aryabhatta.
Que: Differentiate between natural and artificial satellite.
Ans:
| Natural Satellite | Artificial Satellite |
|
|
Que: Define orbit?
Ans: A planet has a definite path in which it revolves around the Sun. This path is called an orbit.
Que: Write the use of artificial satellites.
Ans:
1. They are used for forecasting weather, transmitting television and radio signals.
2. They are also used for telecommunication and remote sensing.
Que: Explain Period of revolution.
Ans: The time taken by a planet to complete one revolution is called its period of revolution.
Que: What is revolution?
Ans: The movement of planets around the sun on their orbit is called revolution.
Que: What is rotation?
Ans: The planets move on their own axis like top, Such movement s known as rotation.
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NCERT Solutions for Class 8 science Chapter 17. Stars And The Solar System Topic Additional Questions With Solutions
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17. Stars And The Solar System-Additional Questions With Solutions Science Class 8 In English
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