Chemistry | Lecture 03 | Basic Definitions | Class 9 | Chapter 1 | Sindh Board

Welcome to Chemistry | Lecture 03! 🧪📚 In this lecture, we cover the basic concepts and definitions of Chemistry from Chapter 1. These fundamental concepts will help Class 9 students build a strong foundation for understanding Chemistry. In this lecture, we discuss Matter, Atom, Molecule, Substance, Element, Valency, Compound, and Mixture with simple explanations and examples. 00:00 Introduction. 00:50 What is Matter? 04:22 What is Atom? 07:34 What is Molecule? 08:34 What is Substance? 12:22 Types of Molecule. 15:52 What is Element? 19:15 Important elements and symbols. 23:40 What is Valency? 27:25 What is Compound? 30:14 What is Mixture? 31:02 Types of Mixture. 34:02 Outro. 📖 Class: 9th 🧪 Subject: Chemistry 📚 Chapter: 1 📝 Lecture: 03 📍 Board: Sindh Board 👍 Like the video if you found it helpful. 💬 Comment your questions and let us know which topic you want us to cover next. 🔄 Share this lecture with your classmates and friends. 🔔 Subscribe to Sir Hassan’s Coaching for more Chemistry, Physics & Mathematics lectures. 📸 Follow us on Instagram:   / sirhassanscoaching   📝 Contact for Notes: 📱 WhatsApp: 0300 5312519 Sir Hassan’s Coaching — Where Education Meets Excellence. 🎓 #Class9Chemistry #Chemistry #SindhBoard #ChemistryLecture #Chapter1 #Class9 #SirHassansCoaching #Lecture03 #MatricChemistry #Education