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 – Motion Chapter 8 – Force and […]

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 Motion Class 9 Notes Chapter 8 Force and Laws of Motion Class 9 […]

Notes For All Chapters Science Class 9 1. Why Do We Need to Improve Food Resources? All living things need food to grow and stay healthy. Our food gives us carbohydrates, proteins, fats, vitamins, and minerals. We get food mainly from plants (agriculture) and animals (animal husbandry). India’s population is very large and still growing […]

Notes For All Chapters Science Class 9 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 […]

Notes For All Chapters Science Class 9 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 […]

Notes For All Chapters Science Class 9 Introduction → The sensation felt by our ears is called sound. → Sound is a form of energy which makes us hear. → Law of conservation of energy is also applicable to sound. → Sound travels in form of wave. Production of Sound → Sound is produced when […]

Notes For All Chapters Science Class 9 1. Introduction Every living being needs energy for daily activities like playing, reading, running, etc. Energy for life processes comes from food. Machines and living beings both need energy to perform work. In this chapter, we study Work, Energy, and Power — three closely related concepts. 2. WORK […]

Notes For All Chapters Science Class 9 1. Introduction → Gravitational Force of Earth: If we release a small stone without pushing it from a height, it accelerates towards earth. → The stone is when accelerated towards earth, means some force is acting on it. The force which pulls the objects towards the centre of […]

Notes For All Chapters Science Class 9 1. Introduction Force: Force is a push, pull, or hit that can: Change the state of motion of an object (speed up or slow down) Change the direction of motion Change the shape or size of an object Effects of Force: Pushing a trolley moves it forward. Pulling […]

Notes For All Chapters Science Class 9 1. Introduction to Motion 1.1 What is Motion? Motion means a change in the position of an object with time. Everything around us moves in some way: Birds fly in the air. Fish swim in water. Cars move on roads. Blood flows through veins and arteries. Planets, stars, […]

Notes For All Chapters Science Class 9 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 […]

Notes For All Chapters Science Class 9 Introduction → A group of cells that are similar in structure and/or work together to achieve a particular function forms a tissue. → Most of the tissues in plants are supportive, which provides them with structural strength. → These tissues are dead, since dead cells can provide mechanical […]

Notes For All Chapters Science Class 9 CBSE 1. Discovery of the Cell Robert Hooke’s Observation (1665) Robert Hooke examined a thin slice of cork (the bark of a tree) using a self-designed microscope. He saw it resembled a honeycomb structure, made up of many tiny compartments. He called these compartments cells (from Latin cellula, […]

Notes For All Chapters Science Class 9 CBSE 1. Introduction Atoms and molecules are the fundamental building blocks of matter. The existence of different kinds of matter is due to different types of atoms. Scientists questioned: (i) What makes one atom different from another? (ii) Are atoms indivisible as Dalton proposed? Experiments showed that atoms […]

Notes For All Chapters Science Class 9 CBSE 1. Introduction Ancient Indian philosopher Maharishi Kanad (around 500 BC) proposed that matter can be divided into smaller and smaller particles until we reach indivisible particles called Parmanu. Pakudha Katyayama further said these particles exist in combined forms to form different substances. Around the same time, Greek […]

Notes For All Chapters Science Class 9 CBSE Introduction When we see packets of milk, ghee, butter, salt, or juice labeled “pure,” we think pure means no adulteration. → Example: “Pure ghee” means no mixing of oil or impurities. Scientifically, “pure” means: → A substance made up of only one kind of particles (same in […]

Notes For All Chapters Science Class 9 CBSE 1. Introduction Everything in the universe is made of matter. Matter: Anything that has mass and occupies space (volume). Examples: Air, water, food, stones, clouds, plants, animals, etc. Early Indian philosophers classified matter into five elements (Panch Tatva): Air, Earth, Fire, Sky, and Water. Modern classification: Based […]