CBSE Class 9 Sample Papers, Syllabus, Test Papers & NCERT Solutions

NCERT Book for Class 9 Science    Chapter 1 – Matter in Our Surroundings  Chapter 2 – Is Matter Around Us Pure  Chapter 3 – Atoms and Molecules  Chapter 4 – Structure of the Atom  Chapter 5 – The Fundamental Unit of Life  Chapter 6 – Tissues  Chapter 7 – Diversity in Living Organisms  Chapter […]

Chapter 1 Matter in Our Surroundings Class 9 Notes Chapter 2 Is Matter Around Us Pure Class 9 Notes Chapter 3 Atoms and Molecules Class 9 Notes Chapter 4 Structure of the Atom Class 9 Notes Chapter 5 The Fundamental Unit of Life Class 9 Notes Chapter 6 Tissues Class 9 Notes Chapter 7 Diversity in Living Organisms Class 9 Notes Chapter 8 Motion Class 9 Notes Chapter 9 Force and Laws […]

Facts that Matter Food supplies proteins, carbohydrates, fats, vitamins and minerals, all of which we require for body development, growth and health. Different crops require different climatic conditions, temperature and photoperiods for their growth and completion of their life cycle. Photoperiods are related to the duration of sunlight. Growth of plants and flowers are dependent […]

Facts that Matter Life exists on earth due to its ambient temperature, water, food and energy from the sun. Lithosphere: The outer crust of the earth is called the lithosphere. Hydrosphere: Sum of all water bodies is called hydrosphere. Atmosphere: Air that covers the earth is called the atmosphere. Biosphere: The life-supporting zone of the […]

Facts that Matter Introduction Health is a state of complete physical, mental and social well-being. Basic conditions for good health: Proper balanced and nutritious diet. Personal hygiene. Clean environment and surroundings. Healthy air, no pollution in the surrounding. Regular exercise. Proper rest. Good standard of living and economic status. Disease: when the body is not at […]

Facts that Matter A sound is a form of energy which produces a sensation of hearing in our ears. Propagation of Sound: Sound is produced by vibrating objects. Medium: The matter or substance through which sound is transmitted is called a medium. It can be solid, liquid or gas. Air is the most common medium for sound […]

Facts that Matter Work: When a force acts on an object and the object shows displacement, the force has done work on the object. Two conditions need to be satisfied for work to be done: (i) A force should act on object (a) The object must be displaced Work = Force x Displacement Unit of workdone […]

Facts that Matter The universal law of gravitation: Every object in the universe attracts every other object with a force which is proportional to the product of their masses and inversely proportional to the square of the distance between them. The force is along the line joining the centres of two objects. Let two objects A […]

Facts that Matter Force: It is a push or pulls on an object that produces an acceleration in the body on which it acts. S.I. unit of force is Newton. A force can do three things on a body. It can change the speed of the body. It can change the direction of motion of a […]

Facts that Matter An object is said to be in motion when its position changes with time. We describe the location of an object by specifying a reference point. Motion is relative. The total path covered by an object is said to be the distance travelled by it. The shortest path/distance measured from the initial […]

Facts that Matter Diversity: This earth is full of organisms of various shapes and sizes. The largest Phylum of animal kingdom alone contains over a million species. There are varieties of plants, right from small grasses to tall Eucalyptus trees. This variety in living beings is called diversity. Biodiversity: The variety of animals and plants living in […]