Lakhmir Singh Science Class 8 Solutions Stars and the Solar System (Chapter 17)
Lakhmir Singh Solutions for Class 8 Science Chapter 17 – Stars and the Solar System describes the celestial objects, their position, structure, and significance. Other main topics of the chapter include phases of the moon, surface of the moon, its position in the solar system, the observation of the people stepping on the moon surface, what are stars, their count, distance, position, constellation, their significance, names, and role in astrology.
This chapter 17 of Lakhmir Singh Solutions for Class 8 Science also deals with the study of asteroids, meteorites, comets, meteors, and artificial satellites available in space. Images and diagrams representing several components of the Solar System, make this chapter fun to learn.
The chapter of Lakhmir Singh Solutions for Chapter 17 ‘Stars and the Solar System’ has around 5 exercises with a total of 112 questions. All the questions are according to the latest syllabus released by NCERT. Also, we have made the chapter interesting with our step-by-step solutions so that you can grasp the entire content properly. So, solving the exercises will help you prepare for the exams well.
Important Topics for Lakhmir Singh Solutions for Class 8 Science Chapter 17
The main topics and sub-topics of Lakhmir Singh Class 8 Science Solutions Chapter 17 – Stars and the Solar System are provided below:
The Universe comprises all the stars, planets, and galaxies and its size is unidentified. However, there is a spherical region of the universe that can be witnessed from the Earth which is termed as the Observable Universe. It consists of several physical objects that occur certainly on their own. These objects are known as celestial objects. For example, the sun, the moon, the stars, and the planets.
The moon is a natural satellite of the earth that rotates around the earth in a fixed orbit. It does not emit any light of its own but it reflects the light of the sun that falls on it while revolving. However, as the moon revolves around the earth the part of the Moon that faces the sun gets to light up while the other part remains in dark. This results in several shapes of the moon in the sky.
The stars are celestial bodies containing hot gases in it. They emit their own light. But all of them are not the same. They may differ in colours, brightness, size, and temperature.
Stars have a limited period of life. To be born, they take millions of years and live for around tens of millions of years and ultimately come to an end. Due to their long lifespan, the changes in the stars are not very abrupt. Hence, they appear as stable for us.
A constellation is defined as a group of stars that form a familiar shape or pattern. Their shape usually looks like the objects that ancient people used. Also, there are not only 5 to 10 stars in a constellation. It contains numerous stars but only some of them which are the brightest can be observed.
The Solar System
The Solar System consists of the sun, the planets, meteors, asteroids, and other celestial bodies. There is a gravitational attraction between the sun and the celestial bodies that keep them rotating around the sun.
Our solar system consists of 8 planets including Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. All these planets revolve around the sun in a fixed path. The time of rotation of a specific planet is described as the time it takes to complete one rotation.
Like other planets, there are several celestial bodies that are found in the solar system. Asteroids are small rock-like matters that are found revolving the sun. They are usually found between the orbits of Mars and Jupiter. This area is also known as the Asteroid belt.
Meteoroids and Meteors
The asteroids in the space at times strike with each other and form meteoroids. Hence, the small pieces of an asteroid can be termed as meteoroids. From these meteoroids, meteors are created. Meteors are also known as the shooting stars because of their distinctive feature but they are not stars, they are just a piece of rock.
Exercise-Wise Discussion of Lakhmir Singh Solutions Class 8 Science Chapter 17 – Stars and the Solar System
This chapter of Class 8 Science has a total of 5 exercises with a total of 83 questions which are entirely based on the latest exam pattern. The questions range from basic to advance level so that you can easily understand each and every topic of the chapter. Some exercises are divided as follows:
Exercise 1 – Very Short Answer Type Questions
The first exercise of the chapter has around 45 questions which are very short answer type questions. These questions are related to the stars and the solar system.
Exercise 2 – Short Answer Type Questions
This exercise has around 31 questions which are completely related to the main topics of this chapter including phases of the moon, the surface of the moon, its position in the solar system, the observation of the people stepping on the moon surface, what are stars, their count, distance, position, constellation, their significance, names, and role in astrology.
Exercise 3 – Long Answer Type Questions
This exercise set has a total of 10 questions in which you need to give a proper explanation of the situation mentioned.
Exercise 4 – Multiple Choice Question (MCQs)
This exercise set has a total of 20 questions in which you need to choose the right answer from the options given.
Exercise 5 – Questions Based on High Order Thinking Skills
This exercise set has a total of 6 questions in which there are questions based on high order thinking skills. If you face issues in solving these questions, you can refer to Lakhmir Singh Solutions for Chapter 17 by Instasolv.
Benefits of Lakhmir Singh and Manjit Kaur Solutions for Class 8 Science Chapter 17 – Stars and the Solar System
- You can get proper disclosure to all the basic concepts of Class 8 Science Chapter 17 – Stars and the Solar System by going through the solutions provided by Instasolv.
- Following the Lakhmir Singh and Manjit Kaur Solutions for Class 8 Science Chapter 17, you will have the main advantage of studying at your own schedule and pace.
- All the solutions are prepared by our expert teachers for your better understanding.
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We have curated the detailed solutions of chapter 17 of class 8 Science so that there is no space for any kind of doubt regarding Lakhmir Singh Solutions for Class 8 Science. Follow the solutions now!