Class 6 Science Chapter 9 Question Answer Chapter 10 👉 • Class 6 Science Chapter 10 Question Answer... Class 6 Our Science Lesson 9 C3B6U5 Length and Motion Measurement of Length and Motion Si unit 1m = 100 cm 1 cm = 1m 1km equal to 1000m #Class6ScienceAssam #Class6AmarBigyanAssam Thanks for Watching.