NCERT Solutions for Class 9 Science – Textbook Questions and Answers

NCERT Solutions for Class 9 Science have been prepared by our subject expert teachers. All the questions and answers provided by Study Path help you to understand each concept of the NCERT textbook. These solutions are made as per the latest CBSE syllabus and guidelines. NCERT Solutions for Class 9 Science cover all the chapters included in the NCERT textbook. Practice these solutions to get good marks in the exams.

NCERT Solutions For Class 9 Science – Chapter List

• 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 and Energy
• Chapter 12: Sound
• Chapter 13: Why Do We Fall ill?
• Chapter 14: Natural Resources
• Chapter 15: Improvement in Food Resources

NCERT Solutions For Class 9 Science Chapter-wise Discussion

Chapter 1 – Matter in Our Surroundings
As the name suggests, in this chapter, you will learn about matters. Everything that exists in the universe is made up of matter. Anything that occupies space and has mass is called matter. This chapter explains the physical and chemical properties of matter. Further, it talks about the states of matter, such as Solid, Liquid, and Gas.

Chapter 2 – Is Matter Around Us Pure?
Chapter 2 of class 9 science explains about mixtures, types of mixtures, solutions, and the methods of separation of mixtures. Further, it talks about suspension, colloidal solutions, properties of colloidal solutions, etc.

Chapter 3 – Atoms and Molecules
In the previous chapter, you learned about matter and its states. In this chapter, you will know that matters are made up of atoms and molecules. Further, you will learn how to write chemical formulae of different atoms, molecules, and simple compounds.

Chapter 4 – Structure of The Atom
The structure of the atom is an exciting chapter. In this chapter, you will learn about the various atomic models such as Thompson’s model of an atom, Rutherford’s model of an atom, and Bohr’s model of the atom. The chapter explains electronic shells, orbits, neutrons, and valency.

Chapter 5 – The Fundamental Unit of Life
Chapter 5 is related to biology. It explains about the cell, the structural organization of the cell, and their functions. It also explains two processes, mitosis and meiosis, involved in cell division.

Chapter 6 – Tissues
In this chapter, students will learn about different kinds of plant and animal tissues. Important topics discussed in this chapter include epithelial tissue, connective tissue, and meristematic tissues.

Chapter 7 – Diversity in Living Organisms
The world has vast diversity in living organisms. In this chapter, you will learn how living organisms are classified into different groups. The chapter discusses the plant and animal kingdoms.

Chapter 8 – Motion
In Chapter 8, you will learn about motion and the types of motion. Further, you will learn to calculate speed, time, and distance mathematically. Important topics such as displacement, acceleration, scalar, and vector quantities are also explained in this chapter.

Chapter 9 – Forces and Laws of Motion
As the name suggests, this chapter explains different kinds of forces and the three fundamental laws of motion. It also discusses momentum, conservation of momentum, and the formulation of the second law of motion.

Chapter 10 – Gravitation
In this chapter, students will learn about gravitation, Newton’s universal law of gravitation, and its importance. You will also learn how to calculate the value of the gravitational constant. Important topics such as mass, weight, pressure, and thrust are also covered.

Chapter 11 – Work and Energy
In Chapter 11, students will learn about the concept of work and energy through numerical examples. The chapter explains the scientific concept of work, different forms of energy, and concludes with the conservation of energy and the commercial unit of energy.

Chapter 12 – Sound
Chapter 12 is an important and exciting chapter. It explains the production of sound, propagation of sound, and the reflection of sound, including concepts like echo and reverberation. The chapter also introduces ultrasound and the structure of the human ear.

Chapter 13 – Why Do We Fall Ill?
In this chapter, you will learn about health and diseases. Key topics include the significance of health, disease and its causes, and the principles of treatment.

Chapter 14 – Natural Resources
To sustain life, we need resources. In this chapter, you will learn about natural resources such as water, soil, and air. The chapter also discusses biological cycles in the environment and ends with an important topic on ozone.

Chapter 15 – Improvement in Food Resources
Chapter 15 covers topics such as improvement in crop yields, manure, fertilizers, and irrigation. It also covers animal husbandry, dairy, and farming.