NCERT Solutions for Class 9 Science CBSE

NCERT Solutions for Class 9 Science consists of Physics, Chemistry and Biology chapters. You may find certain topics easy and certain topics difficult in your NCERT Science book for Class 9 based on your area of interest. However, you have to prepare for all the questions in the NCERT books for Class 9 to score high marks in the Science exam.

At TopperLearning, expert teachers prepare the NCERT Solutions for Class 9 Physics, Chemistry and Biology. You can access chapter-wise solutions from each Science chapter. In this way, you will be able to directly check solutions for questions from a specific chapter.

Our NCERT Solutions are written clearly by Science experts so that you can understand the concepts and write complete answers to score full marks. 

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NCERT Solutions for Class 9 Science Sub-Subjects:




Chapter-wise List of NCERT Solutions for Class 9 Science:

At TopperLearning, get chapter-wise NCERT Solutions for the following Biology chapters in CBSE Class 9 Science:


Chapter 1: Matter in our surroundings

Study the characteristics of particles of matter and the different states of matter. Write accurately about the properties of the solid-state, liquid state and gaseous state while explaining the states of matter. For situational problems, write logical answers by referring the answers and concept notes prepared by Chemistry experts.


Chapter 2: Is matter around us pure?

In this Chemistry chapter, understand the difference between heterogeneous and homogeneous mixtures. Find answers on identifying physical change and chemical change in our surroundings. Also, understand the concept of pure substances and mixtures. 


Chapter 3: Atoms and Molecules:

Learn the applications of the law of conservation of mass, law of definite proportions and law of constant proportions. Write answers based on Dalton’s atomic theory. Additionally, you can revise concepts such as cation, anion, atomic mass unit, molecular mass, the chemical formula of compounds, etc.


Chapter 4: Structure of the Atom

In this chapter, you can find accurate solutions for questions on canal rays. Study the structure of atoms by understanding concepts such as protons, neutrons and electrons. Also, revise Rutherford’s model of an atom, Thomson’s proposed model of an atom, etc.


Chapter 5: Fundamental Unit of Life

This chapter helps you learn about the cell as a basic unit of life. Biology experts will give you step-wise answers to explain concepts such as eukaryotic cells, prokaryotic cells, chloroplast, Golgi apparatus, chromosomes, nucleus and more.


Chapter 6: Tissues

Get answers on plant tissues and animal tissues in the NCERT Solutions for CBSE Chapter 6 on tissues. Learn about permanent tissues and meristematic tissues. Understand the structure of tissues and write accurate answers to questions related to this concept.


Chapter 7: Diversity in Living Organisms

In this chapter, study about biological diversity concepts such as groups of plants and groups of animals. Find expert NCERT Solutions with explanations on Angiosperms, Bacteria, Bryophyta, chordates, non-chordates and more.

Chapter 8: Motion

To help you understand movement, this chapter covers concepts such as velocity, speed, displacement, distance and acceleration. You’ll learn how to show the uniform- and non-uniform motion of objects using graphs.


Chapter 9: Force and Laws of Motion

Discover the different laws of motion by Isaac Newton and how to write answers for questions related to these laws. Also, find answers on balanced force and unbalanced force.


Chapter 10 Gravitation:

In this chapter, our Physics teachers give you solutions to write answers related to the gravitational force, the universal law of gravitation, Buoyant force and more.


Chapter 11: Work and Energy

The questions in this chapter will be related to concepts such as positive work, negative work, zero work, energy and conservation of energy and power. The expert solutions will show you how to calculate the work done in a physics problem as per the given parameters.


Chapter 12: Sound

This chapter gives you solutions for questions related to concepts such as production and propagation of sound, sound waves and reflection of sound. The chapter also covers the working of the human ear and how you can calculate the depth of the sea using the SONAR technique.


Chapter 13: Why do we fall ill?

Learn about what it means to be healthy and unhealthy. Get complete answers on what are the causes of illnesses and how you can lead a healthy life. In this chapter, read about diseases, causes of diseases and what diseases are infectious in nature.


Chapter 14: Natural Resources

Understand the significance of resources such as air, water, and soil. Write answers on geochemical cycles in nature. This chapter also focuses on types of pollution and how to manage pollution to prevent possible damages.


Chapter 15: Improvements in Food Resources

Revise concepts such as animal breeding, uses of fertilizers, and how to protect crops from pests. Find answers on crop improvement, crop protection, crop production, etc. Also, learn the basics and importance of organic farming through this Biology chapter.



Why are NCERT Solutions important?

Writing the Science exam may not be easy when you have difficulty in understanding the questions. If the question isn’t clear, you may end up writing everything you know about the topic in the question or you will be stuck thinking about how to answer the question. On your exam day if you are stuck or if you spend extra time on writing too much, you may lose precious time.

To prepare for the Class 9 CBSE exams, NCERT textbooks are prescribed by CBSE. For Class 9 Science, the NCERT Science book is the reference material for CBSE Class 9 students. That’s why NCERT questions and answers for Class 9 are important for your exam preparations.

Our Science experts are aware of the exam paper pattern and the topics covered in the latest CBSE Science syllabus for Class 9. With their well-written solutions, you can understand the questions in Physics, Chemistry and Biology and write the appropriate solutions to score well in your Science exam.