NCERT Solutions For Class 9 Science in PDF: If you are looking for NCERT solutions for Class 9 Science, then you have come to the right page. In this article, we have provided detailed Class 9 Science NCERT Solutions for all chapters. The solutions provided here are as per NCERT Textbooks and is prepared by the academic experts at Embibe.
We have provided free PDF download for NCERT Solutions For Class 9 Science. The solutions are provided with detailed and precise answers to help you solve exercise questions with better understanding. These solutions will act as good reference material for you to solve the NCERT exercise questions and to complete your assignments on time. Go through the article to get free PDF of NCERT solutions for Class 9 Science Chapters 1 to 15.
NCERT Solutions For Class 9 Science In PDF – Chapter-Wise Solutions
Students can get detailed NCERT Class 9 Science Solutions for all the chapters by clicking on the respective links as listed below:
- 1st Chapter: Matter in Our Surroundings
- 2nd Chapter: Is Matter Around Us Pure
- 3rd Chapter: Atoms and Molecules
- 4th Chapter: Structure of Atoms
- 5th Chapter: The Fundamental Unit of Life
- 6th Chapter: Tissues
- 7th Chapter: Diversity in Living Organisms
- 8th Chapter: Motion
- 9th Chapter: Force and Laws of Motion
- 10th Chapter: Gravitation
- 11th Chapter: Work and Energy
- 12th Chapter: Sound
- 13th Chapter: Why Do We Fall Ill
- 14th Chapter: Natural Resources
- 15th Chapter: Improvement in Food Resources
Advantages Of Referring To NCERT Solutions For Class 9 Science
The advantages of referring to CBSE NCERT solutions for Class 9 Science are as follows:
- A good reference to solve the NCERT exercise questions: At times students may not be able to answer the questions which may turn frustrating. In such cases, the NCERT solutions provided here will help you to solve and understand the problem.
- Better understanding of concepts: The solutions to the exercises are provided in a step-by-step and simplified manner which will help you to understand the concepts better.
- To complete assignments: Students can refer to the solutions to complete their assignments on time.
- Good revision material: Once you are done with learning and solving the exercises, it is very crucial to practice and revise the chapters regularly and the NCERT solutions provided here will help you in quick revision.
- Will lay a strong foundation for future grades: The concepts studied here will not only help you to excel in the upcoming Class 9 exam but also will act as a strong foundation for your studies in Class 10 and future grades.
CBSE NCERT Solutions For Class 9 Science: Chapter Descriptions
We have provided the description of every chapter covered in the NCERT Class 9 Science textbook in the following sections. You can go through the descriptions to get an idea of the chapters. You can download the NCERT Solutions PDF by clicking on the link given at the end of chapter description.
NCERT Solutions For Class 9 Science: Chapter 1 – Matter In Our Surroundings
Anything which occupies space and has mass is called matter. A rock occupies space and has mass. So, it is called a matter. The air you breathe, the food you eat, water, plants, and animals are all matter.
Early Indian philosophers classified matter as panch tattvas (five basic elements) – air, earth, fire, sky, and water. Modern-day scientists have classified matter on the basis of chemical and physical properties.
Matter is composed of particles. These particles of matter have space between them. They are continuously moving and attract each other. Matter has three states – solid, liquid, and gas. Under the right circumstances, matter can change its state. All these things will be discussed in this chapter along with activities and experiments to simplify the concepts.
- Anything that occupies space and has mass is called matter.
- For example Chair, bed, river, mountain, dog, tree, building, etc.
Characteristics of the matter:
- The matter is made up of small particles called atoms.
- Particles of matter attract each other because of the force of attraction.
- Particles of matter are moving constantly.
- These particles are too small to be observed with the naked eye.
- These particles have spaces between them.
Chapter 1: Matter In Our Surroundings Solutions PDF – Click Here
NCERT Solutions For Class 9 Science: Chapter 2 – Is Matter Around Us Pure
A pure matter is made up of only one particle or atom or molecule. An impure matter, on the other hand, has more than one type of particles or atoms or molecules. Pure gold should consist of only gold atoms.
It is very difficult to get 100% pure matter because there is always some dust or impurities present in a matter. Pure matters are categorized into elements and compounds. Elements are categorized into metal, non-metal, and metalloids. Compounds can be divided into acid, bases, and salts. Impure substances or mixtures are divided into homogenous and heterogeneous mixtures.
Chapter 2: Is Matter Around Us Pure Solutions PDF – Click Here
NCERT Solutions For Class 9 Science: Chapter 3 – Atoms & Molecules
If you take a grain of sand and put it under a microscope, you will be able to see that the grain is made up of tiny grains. Ever wondered when you will be able to find the smallest particle which cannot be further divided. You need to use a scanning tunneling microscope in order to see the atoms. The smallest grain of sand that you can find will be made up of millions of atoms.
An atom consists of Protons, Neutrons, and Electrons. The electrons revolve around the nucleus which is made up of neutrons and protons. The protons are positively charged while the neutrons have no charge. So, the nucleus is positively charged. On the other hand, the electrons are negatively charged. In a stable condition, the number of electrons and protons in an atom remains the same, and hence, the atom is neutral.
Chapter 3: Atoms & Molecules Solutions PDF – Click Here
NCERT Solutions For Class 9 Science: Chapter 4 – Structure Of The Atom
The atom is the fundamental building block of matter. But what makes the atom of one element different from the atom of another element? What are the constituents of an atom? For this one must start with understanding the structure of the atom.
There are different structures of atoms as proposed by different scientists – J.J. Thomson, Rutherford, and Bohr were the scientists who proposed different atomic models. Each atomic model had some drawbacks which were explained in the next atomic model. All these studies on the structure of the atom revealed the existence of sub-atomic particles such as protons, neutrons, and electrons.
The distribution of electrons in different shells, the position of protons and neutrons are also discussed in this chapter. Besides that, you will also learn about the atomic number, atomic mass number, Isotopes, and Isobars.
Chapter 4: Structure Of The Atom Solutions PDF – Click Here
NCERT Solutions For Class 9 Science: Chapter 5 – The Fundamental Unit Of Life
In this chapter, you will study the fundamental unit of life – the living cell. All living beings are made up of cells. Here, the classification and structure of the living cell will be discussed. Cells can be classified based on different parameters. The most common classification is Plant Cell and Animal Cell.
A cell is mainly made up of a cell wall or cell membrane, cytoplasm, nucleus, and other cell organelles. You will learn about the different cell organelles such as endoplasmic reticulum, Golgi apparatus, lysosomes, mitochondria, plastids, and vacuoles. In the end, you will also learn about the processes of cell division – Mitosis and Meiosis. You will also be introduced to chromosomes which will act as the basis for discussions in future grades.
Chapter 5: The Fundamental Unit Of Life Solutions PDF – Click Here
NCERT Solutions For Class 9 Science: Chapter 6 – Tissues
Living creatures are made up of cells, but when you dive deeper, we see that different processes take place in an organism for it to survive and each process is handled by some special types of cells. For example, your heart and liver perform different functions, but both are made up of cells. You will see that all the organs are made up of cells, but a certain group of cells has modified themselves to perform a specific task. Such a group of cells involved in a specific task is called a tissue.
In this chapter, you will learn about both plant tissues and animal tissues. Under plant tissues, you will learn about meristematic tissue and permanent tissue. Under animal tissues, you will learn about epithelial tissue, connective tissue, muscular tissue, and nervous tissue. You will also learn about the structure, functions, and location of each type of tissue in this chapter.
Chapter 6: Tissues Solutions PDF – Click Here
NCERT Solutions For Class 9 Science: Chapter 7 – Diversity In Living Organisms
We see a variety of living organisms around us. Each of these organisms lives in different habitats and have different structural and physiological characteristics. The challenge here is that based on what do we categorize these organisms and name them in a well-defined manner?
In this chapter, you will learn all about the classification of organisms. To start with you will first understand the basis of 5 kingdom classification – Monera, Protista, Fungi, Plantae, and Animalia. You will learn about each of these in detail along with examples.
Considering the major classification, you will learn about Thallophyta, Bryophyta, Pteridophyta, Gymnosperms, and Angiosperms under Plantae and Porifera, Coelenterata, Platyhelminthes, Nematoda, Annelida, Arthropoda, Mollusca, Echinodermata, and Protochordata under Animalia. This chapter consists of various terminologies and examples and you can make a table placing all these respectively for effective learning and revision.
Chapter 7: Diversity In Living Organisms Solutions PDF – Click Here
NCERT Solutions For Class 9 Science: Chapter 8 – Motion
When you say that an object is moving, is it really moving? We need to compare or relate the object in question with some other object to determine if it is in motion or rest. If we see any object moving, we call it moving, but if we see any object not moving, we say it is at rest. But actually, all objects on this earth are in motion as the earth is constantly moving. So, what would you say if a box is lying on the floor? Is it in motion or at rest?
It’s all about the perspective. According to our perspective, the box lying on the floor is at rest. Another example would be when you are on a train. If you see outside, you will feel like the objects outside the train are in motion but the truth is that you are in motion and interpreting the things outside as moving. What if another train runs at the same speed adjacent to your train? The person in that train would seem as not moving to you but is actually in motion. This is relative motion.
Chapter 8: Motion Solutions PDF – Click Here
NCERT Solutions For Class 9 Science: Chapter 9 – Force & Laws of Motion
In our everyday life, we see objects in rest and in motion. When an external force is applied to an object, it causes such motion. We apply force in our day-to-day activities, such as opening the drawer, pushing a shopping trolley, hitting a ball, etc. All these activities are governed by the laws of motion. The applied forces could be balanced or unbalanced and depending on that; a result will be seen.
To start with, you will learn about the first, second, and third laws of motion with examples, mathematical equations, and applications. Based on Newton’s laws of motion, you will learn about inertia, mass, and conservation of momentum which are the fundamental concepts in Physics. There are plenty of real-life examples and activities for a better understanding of the concepts.
Chapter 9: Force & Laws of Motion Solutions PDF – Click Here
NCERT Solutions For Class 9 Science: Chapter 10 – Gravitation
Objects which are thrown up come down. This means that there is some kind of force acting on the bodies all the time. All of us are overcoming this force to do our day-to-day activities. If you are walking or picking up a glass of water to drink, you are doing work against this force to perform that task. This downward force is called the gravitational force.
In this chapter, you will learn all about gravitation. To start with, the Universal Law of Gravitation will be discussed in detail with diagrams and mathematical equations. With the introduction of the concept of acceleration due to gravity, you will know the differences between mass and weight. You will also learn about free fall, thrust, pressure, buoyancy, Archimedes’ Principle, and relative density.
Chapter 10: Gravitation Solutions PDF – Click Here
NCERT Solutions For Class 9 Science: Chapter 11 – Work & Energy
We use the term work and energy very often in our life but here in this chapter, we will learn the scientific meaning of the two terms. There are many situations in your daily life when you perform some work, which involves energy. We have many appliances at home which work on electricity (electrical energy) but exhibits energy in various other forms. This indicates that energy is interconvertible.
In this chapter, you will learn more about this. The discussion will start with understanding the scientific meaning of the term ‘work’. You will also learn the scientific meaning of ‘energy’ and forms of energy (potential and kinetic energy).
Later in the chapter, you will learn about the law of conservation of energy, energy interconnection, and the rate of doing work. Here the law of conservation of energy is very important which says that you can neither create nor destroy energy but can only convert it from one form to another. This will also be the base for discussion in the future.
The chapter also involves various activities and examples to help you understand the concepts better.
Chapter 11: Work & Energy Solutions PDF – Click Here
NCERT Solutions for Class 9 Science: Chapter 12 – Sound
We listen to different types of sound every day but did you know that sound is a form of energy? Sound is produced by a source (a vibrating object) and it needs a medium to propagate. Sound travels as a longitudinal wave.
You must have heard an echo, right? Based on the concept of echo (reflection of sound), SONAR and its applications will be discussed. You will also get to know about the characteristics of sound waves (frequency, amplitude, and speed) and the speed of sound in different mediums.
Chapter 12: Sound Solutions PDF – Click Here
NCERT Solutions For Class 9 Science: Chapter 13 – Why Do We Fall Ill?
We fall ill when we don’t care about our health but what is health. Health is the state of complete physical, mental, social well-being, and not merely the absence of disease. It is the perfect balance between a person and his environment and the proper functioning of all the organs in the body. All the organs should work in a perfect way.
There are three types of health: physical, mental, and social. There are a lot of factors that can affect the health of a human being like a physical environment, social environment, public cleanliness, balanced diet, economic conditions, etc. The characteristics of good health are free from sickness and disease, unnecessary anxiety and tension, free from psychological illness.
Chapter 13: Why Do We Fall Ill? Solutions PDF – Click Here
NCERT Solutions For Class 9 Science: Chapter 14 – Natural Resources
Natural resources are the resources that occur in nature. Renewable resources are the resources that can be replenished and replaced through natural reproduction or other recurring processes in a finite amount of time. Non-renewable resources are the resources that cannot be readily replaced by natural means within the human time scale.
Examples of renewable resources are sunlight, freshwater, and biomass while gasoline, coal, natural gas, plastics, and other fossil fuels are non-renewable resources.
Chapter 14: Natural Resources Solutions PDF – Click Here
NCERT Solutions For Class 9 Science: Chapter 15 – Improvement In Food Resources
Food is essential for us as it provides us with energy. With our limited resources and increasing population, we need to work in the area of improvement in our food resources. We need to improve in the area of agriculture and animal husbandry. We also need to come up with some techniques that could lead to an increase in the productivity of animals and land. The land is limited and we need to feed billions of people.
Intensive techniques have to be implemented in the agriculture sector like growing several crops in a year, adding nutrients, re-using the same land. But there are some techniques that could damage the quality of the soil. For example, the use of fertilizers. So, we need to improve food production without damaging natural resources.
Chapter 15: Improvement In Food Resources Solutions PDF – Click Here
Some Important Questions For 9th Grade Science
We have listed some of the important Class 9 Science questions that will help you in improving your score:
|1. Explain the statement – The melting point of ice is 273.16K.|
|2. Differentiate between physical change and chemical change.|
|3. Find the number of moles in 60g of H2O.|
|4. Define isotopes. Give uses of isotopes.|
|5. Draw a neat diagram of animal cell and label its parts.|
|6. Define connective tissue. Classify and explain its types.|
|7. State the differences between monocot and dicot plants.|
|8. Find the acceleration of a train that is moving with uniform acceleration and attains a speed 40 km/h in 10 minutes.|
|9. Define inertia and explain its different types with 3 examples|
|10. State Archimedes’ principle. Explain why Archimedes’ principle is applicable only for fluids.|
|11. An object of mass ‘m’ is raised from the surface of the earth to an height of equal to earth’s radius (R). Calculate the gain in potential energy by the object. (Gravity of the earth is ‘g’)|
|12. State the difference between longitudinal wave and transverse wave.|
|13. Explain the different methods for the treatment and prevention of diseases.|
|14. What is acid rain? State its effects on the environment.|
|15. Differentiate between macro-nutrients and micro-nutrients.|
Clear Your Queries On Embibe Ask
With the ongoing COVID-19 outbreak, students have been forced to stay at home and they are finding it difficult to get their doubts and queries cleared. To help the students during these stressful times, Embibe has launched Embibe Ask, an online portal where you will get solutions to all your academic doubts and queries. Simply write your question or upload an image on the portal. Our academic experts will resolve your queries at the earliest. You can also try to find answers/solutions by browsing through the questions posted by others. The best part is you can access Embibe Ask for free! So go to Embibe Ask and clear your queries today.
FAQs On NCERT Solutions For Class 9 Science
Some of the frequently asked questions regarding NCERT Solutions for Class 9 Science are listed below:
A. Students who are looking for NCERT Solutions for Class 9 Physics, can refer to this page. Detailed, step-by-step solutions along with a diagrammatic explanation are provided here.
A. NCERT Solutions for Class 9 Science PDF can be downloaded from Embibe for free. Just click on the link given here to download the NCERT Solutions.
A. Yes, referring to NCERT books will be sufficient to score good marks in the class 9 examination.
A. Students can get the NCERT Solutions for exercise questions online at Embibe.
Learn & Practice Class 9 Lessons With Embibe
At Embibe, you can solve free Class 9 Practice Questions for Science and Maths or take a free Class 9 Mock Test. These tests and practice questions will help you to strengthen your concepts and problem-solving abilities.
Students can follow the steps listed below to take Class 9 foundation mock test:
- – 1st Step: Visit embibe.com. To have the best experience, log in to your account. If you are visiting the site for the first time, register yourself.
- – 2nd Step: Click on the ‘Take a Test’ button below the search tab.
- – 3rd Step: Click on ‘change your goal’ at the top-right corner to change your goal to ‘Foundation-09’.
- – 4th Step: Select the subject you want to take the test in.
- – 5th Step: Click on ‘Show All’ beside ‘Part Test’ to check the list of the tests available. Then click on ‘Start Test’.
- – 6th Step: You can also select units/chapters if you want to take the test for a particular chapter/unit. If you want to practice questions before taking a test, click on ‘Start Practice’.
We have now provided you with the NCERT solutions for Class 9 Science for all chapters. Make the best use of these solutions. Try answering the exercise questions by yourself and refer to the NCERT Class 9 Science Solutions for better understanding.
We hope this article on NCERT Solutions for Class 9 Science helps you. If you have any questions, feel free to ask in the comment section below. We will get back to you at the earliest. Stay tuned to embibe.com for more on CBSE NCERT Solutions For Class 9.1052 Views