Science is a key subject in Class 9 that forms the foundation for future studies in both theoretical and practical areas. At CBSEJanta.com, we provide detailed chapter-wise solutions and important concepts that make learning engaging and efficient.
CBSE Class 9 Science Syllabus ā Chapter Names & Key Concepts
| Chapter Number | Chapter Name | Key Concepts |
|---|---|---|
| 1 | Matter in Our Surroundings | – States of Matter: Solid, Liquid, Gas |
| – Latent Heat and Sublimation | ||
| – Evaporation and its Effects | ||
| 2 | Is Matter Around Us Pure? | – Mixtures and Compounds |
| – Separation Techniques | ||
| – Physical and Chemical Changes | ||
| 3 | Atoms and Molecules | – Law of Conservation of Mass |
| – Daltonās Atomic Theory | ||
| – Mole Concept: Number of Moles = Given Mass/Molar Mass | ||
| 4 | Structure of the Atom | – Thomsonās, Rutherfordās, and Bohrās Models |
| – Atomic Number, Mass Number, and Isotopes | ||
| 5 | The Fundamental Unit of Life | – Cell Structure and Functions: Plant vs Animal Cells |
| – Cell Organelles: Nucleus, Mitochondria, Ribosomes, etc. | ||
| 6 | Tissues | – Plant Tissues: Meristematic and Permanent Tissues |
| – Animal Tissues: Epithelial, Connective, Muscular, and Nervous Tissues | ||
| 7 | Diversity in Living Organisms | – Classification: Five Kingdom Classification (Monera, Protista, Fungi, Plantae, Animalia) |
| – Binomial Nomenclature and Evolutionary Relationships | ||
| 8 | Motion | – Uniform and Non-uniform Motion |
| – Equations of Motion: v = u + at, s = ut + Ā½atĀ², vĀ² = uĀ² + 2as | ||
| 9 | Force and Laws of Motion | – Newtonās Laws of Motion |
| – Momentum: p = mv, Law of Conservation of Momentum | ||
| 10 | Gravitation | – Universal Law of Gravitation: F = G(māmā/rĀ²) |
| – Free Fall and Acceleration Due to Gravity: g = 9.8 m/sĀ² | ||
| – Archimedesā Principle and Buoyancy | ||
| 11 | Work and Energy | – Work Done: W = F Ć s |
| – Kinetic Energy: KE = Ā½mvĀ² | ||
| – Potential Energy: PE = mgh | ||
| – Law of Conservation of Energy | ||
| 12 | Sound | – Nature of Sound Waves: Longitudinal Waves |
| – Speed of Sound and Echo | ||
| – Frequency, Time Period, and Pitch: v = fĪ» | ||
| 13 | Why Do We Fall Ill? | – Health and Its Failure |
| – Diseases: Types of Diseases (Infectious and Non-infectious) | ||
| – Causes of Diseases: Pathogens and Prevention | ||
| 14 | Natural Resources | – Resources: Water, Air, Soil, and their Pollution |
| – Ozone Layer Depletion and Conservation Strategies | ||
| 15 | Improvement in Food Resources | – Agricultural Practices: Crop Yield and Management |
| – Animal Husbandry and Fertilizers |
CBSE Class 9 Science Syllabus ā Important Formulas
- Motion:
- v = u + at
- s = ut + Ā½atĀ²
- vĀ² = uĀ² + 2as
- Gravitation:
- F = G(māmā/rĀ²)
- g = GM/RĀ²
- Work and Energy:
- Work Done: W = F Ć s
- Kinetic Energy: KE = Ā½mvĀ²
- Potential Energy: PE = mgh
- Sound:
- Speed of Sound: v = fĪ»
Why CBSEJanta.com for Class 9 Science?
- Complete Chapter Solutions: Step-by-step explanations for all chapters.
- Key Concepts and Formulas: Simplified learning with important formulas and key points.
- Interactive Learning: Get access to engaging and detailed explanations.
- Practice Questions: Additional exercises to test your understanding of the topics.
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