Bihar board class 7 science chapter 5 question answer | Bihar Board physical and chemical changes

Bihar board class 7 science chapter 5 question answer | Bihar Board Physical and Chemical Changes Class 7 Science Chapter 5 Question Answer Bihar Board | Physical and Chemical Changes 2025-26 NCERT Class 7 Science Chapter 5 Question Answer | Physical and Chemical Changes | Bihar Board 2025-26 | NCERT New Syllabus Hello students! In this video we will read Chapter 5 of Class 7 Science (Bihar Board) – Physical and Chemical Changes. This video is based on the latest NCERT syllabus of 2025-26 and all the exercise questions and answers are given in it. #Class7Science #BhautikRasayanikParivartan #Chapter5Science #BiharBoard2025 #NCERT2025 #ScienceQuestionAnswer #NewSyllabus2025