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Improvement in Food Resources Class 9 Notes Science Chapter 15 CBSE Class 9 Science Notes Chapter 15 Improvement in Food Resources Pdf free download is part of Class 9 Science Notes for Quick Revision. Here we have given NCERT Class 9 Science Notes Chapter 15 Improvement in Food Resources. CBSE Class 9 Science Notes Chapter [...]
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Natural Resources Class 9 Notes Science Chapter 14 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 [...]
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Why Do we Fall ill Class 9 Notes Science Chapter 13 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 [...]
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Sound Class 9 Notes Science Chapter 12 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 [...]
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Work, Power and Energy Class 9 Notes Science Chapter 11 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 [...]
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Gravitation Class 9 Notes Science Chapter 10 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 [...]
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Force and Laws of Motion Class 9 Notes Science Chapter 9 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 [...]
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Motion Class 9 Notes Science Chapter 8 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. [...]
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Diversity in Living Organisms Class 9 Notes Science Chapter 7 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 [...]
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Tissues Class 9 Notes Science Chapter 6 Facts that Matter Tissues Group of cells having a common origin and similar function are termed as tissues. A. Plant tissues: On the basis of the dividing capacity, plant tissues are of two types: Meristematic tissues Permanent tissues 1. Meristematic tissues: Consist of actively-dividing cells. Meristematic tissues are [...]