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NCERT Solutions for Class 9 Science CBSE

Home Revise - NCERT Solutions for Class 9 Science

Are you looking for class 9 Science book solutions?.

Home Revise brings you NCERT Solutions for all chapters of NCERT Class 9 science in an animated formats. It makes study easy interesting and enjoyable. Download home revise study app to get NCERT solutions for class 9 Science

NCERT Solutions for Class 9 Science CBSE

Class 9 is one of the most crucial educational milestones to score best in class 10 board examinations. NCERT class 9 Science solution have been proved extremely helpful for students in laying a strong foundation of the subject. Our experts make these NCERT Solutions for Class 9 Science easy to understand, without compromising quality or the content covered. The answers to the questions related to the topics present in NCERT Solutions for Class 9 Science are explained in a simple and descriptive manner so as to aid students to solve even the most complex problems and numericals in exams. These solutions will improve the quality of their answers therby help them to get good scores in CBSE Class 9 Science Exams.

Home Revise’s all-inclusive NCERT class 9 Science Book solutions will help students extensively in their regular study sessions, daily homework and assignments, as well as exams.

NCERT class 9 Science syllabus mainly focuses on this NCERT Book for class 9 Science to make it student-friendly and useful for both the students and the competitive exam aspirants. Home Revise covers a detailed Science based syllabuses of various boards. NCERT Book for class 9 Science is perfectly compatible with almost every Indian education state and central boards and covers all topics of NCERT class 9 Science syllabus. Home Revise has developed all the syllabus of NCERT class 9 Science in an audio visual format

Here are the chapters that are a part of the syllabus in the NCERT class 9 Science Book solutions:

CBSE Class 9 Science Unit-Wise Weightage

Unit No. Unit Name Marks
1 Matter - Its Nature and Behaviour 27
2 Organisation in the Living World 26
3 Motion, Force and Work 27
Total 80
Internal assessment 20
Grand Total 100

Theme: Materials

Unit I: Matter-Nature and Behaviour

Nature of matter: Elements, compounds and mixtures.Heterogeneous and homogenous mixtures, colloids and suspensions.

Particle nature, basic units: Atoms and molecules, Law of constant proportions, Atomic and molecular masses.

Structure of atoms: Electrons, protons and neutrons, valency, chemical formula of common compounds. Isotopes and Isobars.

Theme: The World of the Living

Unit II: Organization in the Living World

Cell - Basic Unit of life: Cell as a basic unit of life; prokaryotic and eukaryotic cells, multicellular organisms; cell membrane and cell wall, cell organelles and cell inclusions; chloroplast, mitochondria, vacuoles, endoplasmic reticulum, Golgi apparatus; nucleus, chromosomes - basic structure, number.

Tissues, Organs, Organ System, Organism: Structure and functions of animal and plant tissues (only four types of tissues in animals; Meristematic and Permanent tissues in plants).

Health and Diseases: Health and its failure. Infectious and Non-infectious diseases, their causes and manifestation. Diseases caused by microbes (Virus, Bacteria and Protozoans) and their prevention; Principles of treatment and prevention. Pulse Polio programmes.

Theme: Moving Things, People and Ideas

Unit III: Motion, Force and Work

Motion: Distance and displacement, velocity; uniform and non-uniform motion along a straight line; acceleration, distance-time and velocity-time graphs for uniform motion and uniformly accelerated motion, derivation of equations of motion by graphical method; elementary idea of uniform circular motion.

Force and Newton’s laws: Force and Motion, Newton’s Laws of Motion, Action and reaction forces, Inertia of a body, Inertia and mass, Momentum, Force and Acceleration. Elementary idea of conservation of Momentum.

ONLY FOR INTERNAL ASSESSMENT

Note: Learners are assigned to read the below listed part of Unit IV. They can be encouraged to prepare a brief write up on any one concept of this Unit in their Portfolio. This may be an assessment for Internal Assessment and credit may be given (Periodic assessment/Portfolio). This portion of the Unit is not to be assessed in the year-end examination.

Theme: Natural Resources: Balance in Nature

Unit IV: Our Environment

Physical resources: Air, Water, Soil. Air for respiration, for combustion, for moderating temperatures; movements of air and its role in bringing rains across India.

Air, Water and Soil pollution (brief introduction). Holes in ozone layer and the probable damages.

Bio-geo chemical cycles in nature: Water, Oxygen, Carbon and Nitrogen.

Gravitation: Gravitation; Universal Law of Gravitation, Force of Gravitation of the earth (gravity), Acceleration due to Gravity; Mass and Weight; Free fall.

Work, energy and power: Work done by a Force, Energy, Power; Kinetic and potential energy; Law of conservation of energy.

As every chapter is of importance when it comes to the NCERT Class 9 Science Syllabus, students need to possess a vast knowledge of the different concepts and topics to score good marks in the exams. Home Revise’s all-inclusive NCERT class 9 Science Book solutions will help you extensively in your regular study sessions, daily homework and assignments, as well as your exams.

Here is the list of chapters included in the syllabus for NCERT Solutions 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 8: Motion.

Chapter 9: Force and Laws of Motion.

Chapter 10: Gravitation.

Chapter 11: Work, Power And Energy.

Chapter 12: Sound.

Chapter 13: Why Do we Fall Ill.

Chapter 14: Natural Resources.

Chapter 15: Improvement in Food Resources.

Class 9 Science Solutions Chapter wise Brief:

Home Revise has explained all the 9th class science concepts comprehensively. Below students will find the description of all the chapters of class 9 Science subject.

NCERT Solution for Class 9 Science Chapter 1: Matter in Our Surrounding

The NCERT book for class 9 Science start with the chapter “Matter In Our Surrounding”. Everything that we see around us is made up of material which is called a matter. These things occupy space and have mass. Earlier, Indian philosopher had classified matter in 5 basic elements, Panch Tatva – air, water, earth, sky and fire. Now, modern scientists have evolved with 2 types of classification i.e. based on physical property and chemical nature. In this chapter, students will learn about the physical properties of matter.

The matter is made up of particles and these particulars are very small. The particles of matter have space between them, they are continuously moving and attract each other. The matter around us exists in 3 different states – solids, liquids and gases. These states of matter arise due to variation in the characteristic of the particles of matter. All the 3 states of matters have been explained in-depth with the help of activities. Further, the textbook explains that the state of matter is inter-convertible. The state of matter can be changed by changing temperature or pressure. The phenomenon of change of a liquid into vapour at any temperature below its boiling point is called evaporation. The rate of evaporation depends upon the surface area exposed to the atmosphere, the temperature, the humidity and the wind speed. Evaporation also causes cooling.

NCERT Solution for Class 9 Science Chapter 2: Is Matter Around Us Pure

This chapter of NCERT Class 9 Science Solutions students will study about the mixture, solution, properties of solutions, separation of mixtures, physical and chemical changes. Along with this, they will also learn about compounds and their properties, the difference between mixtures and compounds, classification of matter.

NCERT solution for class 9 Science - Chapter 3: Atoms and Molecules

In NCERT Class 9 Science chapter 3, students will learn the laws of chemical combination, atoms and molecules. They will get to know how to write a chemical formula, molecular mass and mole concepts and some numerical problems related to these concepts.

NCERT solution for Class 9 Science Chapter 4: Structure of the Atom

This chapter of NCERT Class 9 Science deals with the various atomic models of atoms that were proposed by different scientists. In addition to it, this chapter also covers electrons distribution in different orbits, calculation of valency, atomic number and mass number.

NCERT solution for Class 9 Science - Chapter 5: The Fundamental Unit of Life

This chapter of NCERT book for class 9 Science is related to the Biology part. In this chapter, students will get to know that cell is the fundamental unit of life. The whole chapter revolves around the cell and its structural organisation, in which students will learn about plasma membrane, cell wall, nucleus, cytoplasm and structure of an animal cell.

NCERT Solution for Class 9 Science - Chapter 6: Tissues

This chapter of NCERT Class 9 Science Solutions pertains to the basic definition of tissue and then elaborates on the Plant and Animal tissue with proper diagrams. Students will get to know the different types of plant and animal tissues with a detailed explanation of each.

NCERT Solution for Class 9 Science - Chapter 7: Diversity in Living Organisms

This chapter of NCERT Class 9 Science Solutions deals with the classification of plants and animals. Students get to know that all living organisms are divided into 5 kingdoms namely Monera, Protista, Fungi, Plantae and Animalia. It also describes the classification and evolution, the hierarchy of classification.

NCERT Solution for Class 9 Science - Chapter 8: Motion

In NCERT Class 9 Science chapter 8 describes motion, the speed with direction, rate of change of velocity, graphical representation of motion. Also, students will find the 3 equations of motion and numerical problems related to it. Overall, this chapter will be a mix of theory as well as the numerical part.

NCERT Solution for Class 9 Science - Chapter 9: Force and Laws of Motion

This chapter of NCERT book for class 9 Science explains the 3 laws of motions with the help of diagrams and examples. Below are the 3 laws of motions:

  • 1. First law of motion: An object continues to be in a state of rest or of uniform motion along a straight line unless acted upon by an unbalanced force.
  • Second law of motion: The rate of change of momentum of an object is proportional to the applied unbalanced force in the direction of the force.
  • Third law of motion: To every action, there is an equal and opposite reaction and they act on two different bodies.

NCERT solution for Class 9 Science - Chapter 10: Gravitation

In chapter 10 of NCERT Class 9 Science, students will learn the universal law of gravitation and its importance, free fall, mass, weight, thrust and pressure, Archimedes’ principle and relative density. Students will also find numerical problems related to these topics.

NCERT solution for Class 9 Science - Chapter 11: Work, Power And Energy

In this chapter, the concept of work is defined with different activities, numerical and examples. The chapter also deals with energy and its different forms. Examples are given to explain all types of energy. The chapter ends with the topic “rate of doing the work”.

NCERT solution for Class 9 Science - Chapter 12: Sound

Chapter 12 of NCERT Class 9 Science, deals with concepts such as production of sound, propagation of sound, the reflection of sound, range of hearing, applications of ultrasound, the structure of the human ear. A few numericals are also there in the chapter which can only be solved after understanding the concepts. So, students must grasp and study the chapter carefully.

NCERT solution for Class 9 Science - Chapter 13: Why Do we Fall Ill

This chapter of NCERT Class 9 Science Solutions deals with health issues and different types of diseases. It covers topics like; Health and its failure, disease and its cause, infectious diseases. This chapter is added to make students aware of different types of diseases so that they take care of their health and be fit and healthy.

NCERT solution for Class 9 Science - Chapter 14: Natural Resources

We are blessed with natural resources. These are essential to meet the basic requirements of all forms of life on Earth. So, this chapter has been included by NCERT to provide knowledge on types of resources available on the Earth. This chapter deals with the topics like air, water, soil, biogeochemical cycle and the ozone layer, its importance and how humans are polluting them.

NCERT solution for Class 9 Science - Chapter 15: Improvement in Food Resources

The last chapter of NCERT Class 9 Science covers topics like Improvement in crop yields, manure, fertilizer, storage of grains, animal husbandry. This chapter provides knowledge regarding agriculture, farming and dairy.

Why Choose Home Revise for NCERT Class 9 Science Solutions?

Preparation for NCERT Class 9 Board Exams requires hard work and dedication. Science is a demanding subject, and to score well, you need to have a complete understanding of all the individual chapters from the NCERT Class 9 Science textbook. Home Revise is an e-learning platform that combines the benefits of e- learning and visual education to offer you top-quality educational animated videos and study material from the syllabus in the NCERT Class 9 Science Book Solutions.

Here’s why you should choose Home Revise for studying NCERT Class 9 Science::

  • 100% Mapped from the Textbook: Home Revise offers reliable and high- quality educational animated videos for the complete NCERT Class 9 Science Syllabus, giving you a strong foundation for your exams.
  • Clear and Simple Language: All the videos, study material, explanations, and solutions are provided clearly and concisely with simple language that will allow you to have a better grip on the subject.
  • Detailed Explanations, Diagrams, and Solutions: Home Revise’s NCERT Class 9 Science Book Solutions study material gives you detailed step-by- step explanations for all the concepts with real-life examples. You will also learn to solve various practical calculations, and draw essential diagrams with proper labelling, giving you a strong edge in the exams.
  • Budget-Friendly: Home Revise is available in different budget-friendly packages, such as monthly quarterly, half-yearly, and annual packages.
  • Cost-Effective: Home Revise is available in several cost-effective and affordable packages, including monthly, quarterly, half-yearly, as well as yearly packages. We provide complete value for money and you’ll surely notice the difference in your child.
  • Accessible 24/7: You can access and refer to Home Revise at any time you want for studying, revision, assignments, as well as for exam preparation.
  • Save your internet cost You can study through Home Revise with internet (online) or without internet (offline) as per your preference.

We hope that this detailed article on Book for class 9 Science helps you in your preparation and you crack the Class 9 exams or competitive exams with excellent scores. Best of luck!!!

BENEFITS OF Learning through HOME REVISE Study App

  • Use of Multi-Sensory approach i.e. Eyes & Ears to see thousands of pictures & animations, which has impact on brain like a movie for storing Long Term Memory
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Home Revise features

The Best Animation Quality

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  • Includes many colorful Diagrams & Animated scientific Experiments.
  • Designed by Qualified, Expert & Experienced teachers.
  • Colorful, Well-illustrated, Creatively & Scientifically designed.

Meaning of Difficult Words

It's a unique feature of Home Revise. We have added the meaning of difficult words from each paragraph for better understanding of students.

Benefits to students:

  • No need to search for the meaning.
  • Parents also can understand the meaning of difficult words then & there and can explain the concepts to their kids if necessary.
  • Teachers can also use it as a teaching aid or reference to teach the lesson.

The Best Sound Quality

International Voice quality which is crisp & clear to understand.

Interactive Objective Test

We have provided interactive objective tests after every paragraph, which help students to check their grasping level of the lesson & to revise it thoroughly

Result Oriented Approach

Every Education System is based on Exam system, where students have to answer the questions based on textbook syllabus.

  • We help students to understand the lessons as well as to learn the questions & answers thoroughly
  • To make the revision easy, we have explained questions & answers after every paragraph

Exercise with Sound

Every Education System is based on Exam system, where students have to answer the questions based on textbook syllabus.

  • We have explained all the questions & answers (Swadhyay) at the end of lessons.
  • Students can learn, by-heart the question answers then and there itself

Three Times Revision

Students can revise the questions & answers three times with Home Revise

  • Through Interactive Test after every paragraph
  • Through the given question answers at the end of the paragraph
  • Through the given exercise at the end of the chapter

Easy Navigation

It is simple and clearly structured, which helps learners to easily and their way

FAQs on Solutions for Class 9 Science

1. How do I score good marks in science class 9?

Practice is the only way for scoring more marks in the CBSE Class 9 Science Homerevise study app will make you to memorize all chapters as its presented in an animated formats. It’s audio visual effect makes student to understand concepts well and so remain in long term memory. Its the best way to score well in the exams as well as get command on the subject.

2. Which is the best book of science for Class 9 CBSE?

There is no one specific book for preparing Class 9 Science. Instead, we have covered all the concepts in NCERT Textbooks prescribed for Class 9 Science that can help in your Exams.

3. How many chapters are included in the NCERT Class 9 Science Syllabus?

The NCERT class 9 syllabus for Science consists of 15 chapters.

4. Where can I get the NCERT solutions for Class 9 Science?

You need not panic as we will give you all the NCERT Solutions for Class 9 Science all at one place on our site. View or download them and practice as and when you want.

5. What is included in the Home Revise Class 9 Science Solutions?

Home Revise covers the entire curriculum from the Book for Class 9 Science. We provide audio-visual learning modules for all the topics, definitions, concepts, exercises, solutions, and diagrams. Our study material is mapped from the Solutions for Class 9.

Give yourself the Home Revise Advantage!

Studying Science requires a strong conceptual foundation. Home Revise provides personalized, well-designed, and efficient chapter-wise visual learning modules sourced from Class 9 Science Book Solutions. Take your studies and exam preparation to the next level with Home Revise today!

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