NCERT solutions for class 9 science chapter 10 Gravitation (Old book) NCERT solutions for class 9 science chapter 9 Gravitation (New book) Class 9 science rationalised book solution Welcome to our YouTube video on NCERT Class 9 Science Chapter 9 Gravitation, where we will be discussing the answers to the questions given on page no. 138 (old book) / 106 (new book) of this chapter. In this video, we will cover intext questions of class 9 science chapter 10 page no. 138 (old book). Class 9 science chapter 9 page no. 106 (new book) I will explain each question in a simple and easy-to-understand manner, using examples and illustrations that will help you grasp the concepts better. This video is especially helpful for those who are preparing for their Class 9 Science exams and want to score good marks. So, whether you are a student or a teacher, this video is a must-watch for anyone who wants to understand the concept of gravitation in a better way. So, sit back, relax, and enjoy our NCERT Class 9 Science Chapter 9 gravitation video. Don't forget to like, share and subscribe to our channel ( @masterji2020 ) for more such informative videos 1. What are the differences between the mass of an object and its weight? 2. Why is the weight of an object on the moon 1/6 th its weight on the earth?