NCERT Book for Class 9 Science

Ever wondered how the universe works or how technology comes to life every year as innovations keep coming out? Even if you don't understand these now, you will eventually once you start grasping the fundamentals of Science. Science is used interchangeably both in everyday and professional life. It goes without saying, if you crave an understanding of things around you, you need to learn science.

Our 9th Class NCERT Science Book PDF Free Download has been designed for those who are looking for a quick overview of the chapters prescribed in the CBSE Class 9 NCERT Science textbooks. Questions and answers are presented in a chapter wise format in the NCERT Class 9 Science Book PDF for free, pertaining to what you normally get in standard NCERT textbooks, thus making revision easy and definitely a breeze, especially for last-minute revisions. Working through this CBSE NCERT Science Book Class 9 free PDF download will also prepare you to face other competitive exams like the IIT-JEE and NEET as well in the near future as those papers constantly reference NCERT textbook material a lot. Below given are the chapter wise details for Class 9 Science NCERT Books.

Chapter 1: Matter in our Surroundings

Students will study in detail the different states of matter, the effect of temperature on the state of matter, can matter change its state, effect of change in pressure, evaporation, factors affecting evaporation, how evaporation causes cooling.

Chapter 2: Is matter around us pure

In this chapter, students will learn about the concept of mixtures and the different types of mixtures, the concept of a solution, properties of a solution, Colloidal Solution, the concept of suspension, properties of colloid, different methods of separating the components of a mixture, physical and chemical changes, different types of pure substance i.e. elements, compounds, and mixtures. 

Chapter 3: Atoms and Molecules

In this chapter, students will learn about the laws of chemical combination, laws of conservation of mass, the law of constant proportion, the concept of the atom, atomic mass, the concept of the molecule, ion, and the techniques of learning the chemical formula, the formula of simple compounds, molecular mass, and the mole concept.

Chapter 4: Structure Of the Atom 

In this chapter, students will learn about charged particles in a matter, different theories and hypotheses postulated on the structure of an atom, constituent of atoms neutrons, protons, and electrons, the concept of valency, atomic number, mass number, isotopes, and isobars.

Chapter 5: The Fundamental Unit Of Life

In this chapter, students will learn about what living organisms are made up of, plasma membrane or cell membrane, structural organization of a cell, cell wall, nucleus, cytoplasm. Students will study cell organelles, endoplasmic reticulum, Golgi apparatus, lysosomes, mitochondria, plastid, vacuoles, and cell division. 

Chapter 6: Tissues

In this chapter, students will learn about the difference between plant tissues and animal tissues, permanent tissues, simple permanent tissues, different forms of animal tissues like epithelial tissue, connective tissues, muscular tissue, and nervous tissue. 

Chapter 7: Diversity in Living Organisms

Here, the students will learn about the basis of classification, classification and evolutions, the hierarchy of classification groups, Plantae, and Animalia.

Chapter 8: Motion

In this chapter, students will understand how motion is described, motion in a straight line, uniform, and non-uniform motion, velocity, graphical representation of motion, and uniform circular motion.

Chapter 9: Force And Laws Of Motion

In this chapter, balanced and unbalanced forces, Newton’s laws of motion, Inertia and mass, conservation of momentum are covered.

Chapter 10: Gravitation

In this chapter, students will learn about the universal law of gravitation, the significance of the universal law of gravitation, the concept of mass, and weight, thrust and pressure, pressure in fluids, buoyancy, Archimedes principle, relative density.

Chapter 11: Work and Energy

In this chapter, students will learn about the scientific conception of work, work done by a constant force, energy, different forms of energy, and the law of conservation of energy. 

Chapter 12: Sound

In this chapter, students will learn how sound is produced, propagation of sound, characteristics of the sound wave, speed of sound in a different medium, a reflection of sound, range of hearing, ultrasound, the structure of the human ear. 

Chapter 13: Why do we fall ill

In this chapter, students will learn about health and its failure, distinctions between health and disease-free, different forms of the disease and its cause, infectious diseases, how they spread, principles of treatment, principles of prevention.

Chapter 14: Natural Resources

Here, students will learn about the role of the atmosphere, the movement of air, rain, air pollution, water pollution, minerals found in soil, different biogeochemical cycles, and the ozone layer. 

Chapter 15: Improvement in Food Resources

Here students will become aware of the concepts and techniques of improving crop yields, nutrient management, and the administration of manure, fertilizers, irrigation, cropping patterns, crop protection management, storage of grains, animal husbandry, cattle farming, poultry farming, fish production, and Beekeeping.

Importance of NCERT Textbooks

Lakhs of students are part of the CBSE curriculum, for both classes 10 and 12. In such a scenario, it becomes important for the education council to be able to maintain uniformity amidst students hailing from a variety of different backgrounds. The primary aim is still to improve literacy in the country and empower young children so that they can build bright careers for themselves and support their families. The NCERT textbooks play a major role in this.

The textbooks are designed to impart knowledge in simple and clear English. No complicated words are used so that students who are not fluent in the language do not fall behind. Moreover, the NCERT books are now even being published in Hindi and Urdu to help students from rural backgrounds. The books are ideal for a comprehensive study and enable readers to develop a clear understanding of various concepts. Well-illustrated diagrams pique the interest of students, encouraging them to read more.

The NCERT books are also quite cheap, ensuring that everyone can get their hands on a copy. Moreover, with the advent of the digital age, students can also simply choose to download a PDF online instead of opting to buy a conventional textbook. 

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Other Free CBSE Class 9 Science Study Material

Other Free Study CBSE Material for Class 9