NCERT Solutions Class 9 Science

NCERT Solutions for Class 9 Science comprises of 15 Chapters for Class 9. These Solutions are provided where each of these chapters, have been answered in detail by our team of experts which includes teachers at professionals. These solutions have been compiled in an easy to understand manner, keeping in mind, the perspective of strong, and weak students.




NCERT Solutions for Class 9 Science

Matter in our Surroundings Class 9 Science Chapter 1

Topics Covered in NCERT Solution for Class 9 Science Chapter 1 Matter in our Surroundings are as follows:-

  1. Physical Nature of Matter
    • MATTER IS MADE UP OF PARTICLES
    • HOW SMALL ARE THESE PARTICLES OF MATTER?
  2. Characteristics of Particles of Matter
    • PARTICLES OF MATTER HAVE SPACE BETWEEN THEM
    • PARTICLES OF MATTER ARE CONTINUOUSLY MOVING
    • PARTICLES OF MATTER ATTRACT EACH OTHER
  3. States of Matter
    • THE SOLID STATE
    • THE LIQUID STATE
    • THE GASEOUS STATE
  4. Can Matter Change its State?
    • EFFECT OF CHANGE OF TEMPERATURE
    • EFFECT OF CHANGE OF PRESSURE
  5. Evaporation
    • FACTORS AFFECTING EVAPORATION
    • HOW DOES EVAPORATION CAUSE COOLING?

Is Matter Around Us Pure – Chapter 2

Topics Covered in NCERT Solution for Class 9 Science Chapter 2 Is matter around us pure are as follows:-

  1. Elements, compounds and mixtures
  2. What is a Solution
    • Concentration of a Solution
    • What is a suspension?
    • What is a Colloidal Solution
  3. Separating the Components of a Mixture
  4. Physical and Chemical Changes
  5. What are the Types of Pure Substances?

Atoms and Molecules Class 9 Science Chapter 3

Topics Covered in NCERT Solution for Class 9 Science Chapter 3 Atoms and Molecules are as follows:-

  1. Laws of Chemical Combination
  2. What is an Atom
  3. What is a Molecule
  4. Writing Chemical Formulae
    • Formulae of Simple Compounds
  5. Molecular Mass and Mole Concept
    • Molecular Mass
    • Mole Concept

Structure of the Atom Class 9 Science Chapter 4

Topics Covered in NCERT Solution for Class 9 Science Chapter 4 Structure of the Atom are as follows:-

  1. Charged Particles in Matter
  2. The Structure of an Atom
    • THOMSON’S MODEL OF AN ATOM
    • RUTHERFORD’S MODEL OF AN ATOM
    • BOHR’S MODEL OF ATOM
    • NEUTRONS
  3. How are Electrons Distributed in Different Orbits (Shells)?
  4. Valency
  5. Atomic Number and Mass Number
  6. Isotopes
    • ISOBARS




The Fundamental Unit of Life Class 9 Science Chapter 5

Topics Covered in NCERT Solution for Class 9 Science Chapter 5 The Fundamental Unit of Life are as follows:-

  1. What are Living Organisms Made Up of?
  2. What is a Cell Made Up of? What is the Structural Organisation of a Cell?
    • PLASMA MEMBRANE OR CELL MEMBRANE
    • CELL WALL
    • NUCLEUS
    • CYTOPLASM
    • CELL ORGANELLES

Tissues Class 9 Science Chapter 6

Topics Covered in NCERT Solution for Class 9 Science Chapter 6 Tissues are as follows:-

  1. Are Plants and Animals Made of Same Types of Tissues?
  2. Plant Tissues
    • MERISTEMATIC TISSUE
    • PERMANENT TISSUE
  3. Animal Tissues
    • EPITHELIAL TISSUE
    • CONNECTIVE TISSUE
    • MUSCULAR TISSUE
    • NERVOUS TISSUE

Diversity in Living Organisms – Chapter 7

Topics Covered in NCERT Solution for Class 9 Science Chapter 7 Diversity in Living Organisms are as follows:-

  1. What is the Basis of Classification?
  2. Classification and Evolution
  3. The Hierarchy of Classification Groups
    • MONERA
    • PROTISTA
    • FUNGI
    • PLANTAE
    • ANIMALIA
  4. Plantae
    • THALLOPHYTA
    • BRYOPHYTA
    • PTERIDOPHYTA
    • GYMNOSPERMS
    • ANGIOSPERMS
  5. Animalia
    • PORIFERA
    • COELENTERATA (CNIDARIA)
    • PLATYHELMINTHES
    • NEMATODA
    • ANNELIDA
    • ARTHROPODA
    • MOLLUSCA
    • ECHINODERMATA
    • PROTOCHORDATA
    • VERTEBRATA
  6. Nomenclature

Motion – Chapter 8

Topics Covered in NCERT Solution for Class 9 Science Chapter 8 Motion are as follows:-

  1. Types of Motion
  2. Average Speed and Average Velocity
  3. Rate of Change of Velocity
  4. Graphical Representation of Motion
  5. Graphical Representation of Equation of Motion
  6. Uniform Circular Motion

Force and Laws of Motion – Chapter 9

Topics Covered in NCERT Solution for Class 9 Science Chapter 9 Force and Laws of Motion are as follows:-

  1. Balanced and Unbalanced Forces
  2. Newton’s Law of Motion
  3. First Law of Motion
  4. Inertia and Mass
  5. Second Law of Motion
  6. Third Law of Motion
  7. Conservation of Momentum

Gravitation Class 9 Science Chapter 10

Topics Covered in NCERT Solution for Class 9 Science Chapter 10 Gravitation are as follows:-

  1. Gravitation
    • UNIVERSAL LAW OF GRAVITATION
    • IMPORTANCE OF THE UNIVERSAL LAW OF GRAVITATION
  2. Free Fall
    • TO CALCULATE THE VALUE OF g
    • MOTION OF OBJECTS UNDER THE INFLUENCE OF GRAVITATIONAL FORCE OF THE EARTH
  3. Mass
  4. Weight
    • WEIGHT OF AN OBJECT ON THE MOON
  5. Thrust and Pressure
    • PRESSURE IN FLUIDS
    • BUOYANCY
    • WHY OBJECTS FLOAT OR SINK WHEN PLACED ON THE SURFACE OF WATER?
  6. Archimedes’ Principle
  7. Relative Density

Work and Energy Class 9 Science Chapter 11

Topics Covered in NCERT Solution for Class 9 Science Chapter 11 Work and Energy are as follows:-

  • Work
  • Power
  • Energy
  • Unit of Energy
  • Forms of Energy
  • Kinetic Energy and its expression
  • Potential Energy and its expression
  • Conservation of Energy




Sound – Chapter 12

Topics Covered in Chapter 12 Sound are as follows:-

  1. Production of Sound
  2. Propagation of Sound
  3. Reflection of Sound
  4. Range of Hearing
  5. Applications of Ultrasound
  6. Structure of Human Ear

Why Do We Fall Ill Class 9 Science Chapter 13

Topics Covered in Chapter 13 Why Do We Fall Ill are as follows:-

  1. Health and its failure
    • The significance of ‘Health’
    • Personal and community issues both matter for health
    • The distinction between healthy and disease-free
  2. Diseases and its causes
    • What does diseases look like?
    • Acute and chronic diseases
    • Chronic diseases and poor health
    • Causes of diseases
    • Infectious and non-infectious diseases
  3. Infectious diseases
    • Infectious agents
    • Means of spread
    • Organ-specific and tissue-specific manifestations
    • Principles of treatment
    • Principles of prevention

Natural Resources – Chapter 14

Topics Covered in NCERT Solution for Class 9 Science Chapter 14 Natural Resources are as follows:-

  1. The Breath of Life: Air
    1. THE ROLE OF THE ATMOSPHERE IN CLIMATE CONTROL
    2. THE MOVEMENT OF AIR: WINDS
    3. RAIN
    4. AIR POLLUTION
  2. Water: A Wonder Liquid
    1. WATER POLLUTION
  3. Mineral Riches in the Soil
  4. Biogeochemical Cycles
    1. THE WATER-CYCLE
    2. THE NITROGEN-CYCLE
    3. THE CARBON-CYCLE
    4. THE OXYGEN-CYCLE
  5. Ozone Layer

Improvement in Food Resources Class 9 Science Chapter 15

Topics Covered in NCERT Solution for Class 9 Science Chapter 15 Improvement in Food Resources are as follows:-

  1. Improvement in Crop Yields
    1. CROP VARIETY IMPROVEMENT
    2. CROP PRODUCTION MANAGEMENT
    3. CROP PROTECTION MANAGEMENT
  2. Animal Husbandry
    1. CATTLE FARMING
    2. POULTRY FARMING
    3. FISH PRODUCTION

NCERT Solutions for Class 9

CBSE Notes for Class 9

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