17. Stars And The Solar System Class 8 Science [LATEST] Solutions Additional Questions With Solutions in English - CBSE Study
NCERT Solutions for Class 8 Science are carefully prepared according to the latest CBSE syllabus and NCERT textbooks to help students understand every concept clearly. These solutions cover all important 17. Stars And The Solar System with detailed explanations and step-by-step answers for better exam preparation. Each Additional Questions With Solutions is explained in simple language so that students can easily grasp the fundamentals and improve their academic performance. The study material is designed to support daily homework, revision practice, and final exam preparation for Class 8 students. With accurate answers, concept clarity, and structured content, these NCERT solutions help learners build confidence and score higher marks in their examinations. Whether you are revising a specific topic or preparing an entire chapter, this resource provides reliable and syllabus-based guidance for complete success in Science.
Class 8 English Medium Science All Chapters:
17. Stars And The Solar System
4. 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.
Topic Lists: