NCERT Solution Class 9 Science

CBSE Class 9 Science NCERT Solutions

Tackling Class 9 Science is not everyone’s cup of tea. Many students find science to be a complex subject. Be it solving an exercise, completing homework or preparing for an exam, students need CBSE Class 9 Science NCERT solutions.

Vidyakul’sCBSE NCERT Solutions Class 9 Science is presented in a well-structured format by our team of highly experienced teachers. These CBSE Science Class 9 NCERT Solutions cover all 15 chapters from the NCERT textbook, and provide detailed step-by-step solution to the problems. Referring to these NCERT solutions will assure positive results as NCERT textbooks can be very helpful for students to achieve maximum marks in their examinations as they can help the student to understand the concepts and their applications.

Why should you study from CBSE Class 9 Science NCERT Solutions?

To resolve all the difficulties that a student faces while studying science, Vidyakul presents CBSE Class 9

NCERT Solutions in simple PDF formats. These solutions will help the students in many ways such as,

• Detailed solutions to complex problems will provide the students with easy understanding of the concepts.
• The solutions and notes are created by highly qualified teachers with 10+ years of teaching experience.
• These CBSE Class 9 NCERT Solutions for Science help the students to complete their homework faster.
• After referring to these Science NCERT Solutions for CBSE Class 9, students can prepare and verify their assignments.
• During the exams, the NCERT Solutions for CBSE Class 9 Science will help the students to solve all their doubts.

Click on the links below to download chapter-wise solutions for CBSE 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 and Energy
• Chapter 12 – Sound
• Chapter 13 – Why Do We Fall ill
• Chapter 14 – Natural Resources
• Chapter 15 – Improvement in Food Resources

NCERT Solutions Class 9 Science Chapter 1 Matter in Our Surroundings Topics

1.1 Physical Nature of Matter

1.1.1 MATTER IS MADE UP OF PARTICLES

1.1.2 HOW SMALL ARE THESE PARTICLES OF MATTER?

1.2 Characteristics of Particles of Matter

1.2.1 PARTICLES OF MATTER HAVE SPACE BETWEEN THEM

1.2.2 PARTICLES OF MATTER ARE CONTINUOUSLY MOVING

1.2.3 PARTICLES OF MATTER ATTRACT EACH OTHER

1.3 States of Matter

1.3.1 THE SOLID STATE

1.3.2 THE LIQUID STATE

1.3.3 THE GASEOUS STATE

1.4 Can Matter Change its State?

1.4.1 EFFECT OF CHANGE OF TEMPERATURE

1.4.2 EFFECT OF CHANGE OF PRESSURE

1.5 Evaporation

1.5.1 FACTORS AFFECTING EVAPORATION

1.5.2 HOW DOES EVAPORATION CAUSE COOLING?.

NCERT Solutions Class 9 Science Chapter 2 Is Matter Around Us Pure Topics

2.1 What is a Mixture?

2.1.1 TYPES OF MIXTURES

2.2 What is a Solution?

2.2.1 CONCENTRATION OF A SOLUTION

2.2.2 What is a suspension?

2.2.3 WHAT IS A COLLOIDAL SOLUTION?

2.3 Separating the Components of a Mixture

2.3.1 HOW CAN WE OBTAIN COLOURED COMPONENT (DYE) FROM BLUE/BLACK INK?

2.3.2 HOW CAN WE SEPARATE CREAM FROM MILK?

2.3.3 HOW CAN WE SEPARATE A MIXTURE OF TWO IMMISCIBLE LIQUIDS?

2.3.4 HOW CAN WE SEPARATE A MIXTURE OF SALT AND AMMONIUM CHLORIDE?

2.3.5 IS THE DYE IN BLACK INK A SINGLE COLOUR?

2.3.6 HOW CAN WE SEPARATE A MIXTURE OF TWO MISCIBLE LIQUIDS?

2.3.7 HOW CAN WE OBTAIN DIFFERENT GASES FROM AIR?

2.3.8 HOW CAN WE OBTAIN PURE COPPER SULPHATE FROM AN IMPURE SAMPLE?

2.4 Physical and Chemical Changes

2.5 What are the Types of Pure Substances?

2.5.1 ELEMENTS

2.5.2 COMPOUNDS.

NCERT Solutions Class 9 Science Chapter 3 Atoms and Molecules Topics

3.1 Laws of Chemical Combination

3.1.1 LAW OF CONSERVATION OF MASS

3.1.2 LAW OF CONSTANT PROPORTIONS

3.2 What is an Atom?

3.2.1 WHAT ARE THE MODERN DAY SYMBOLS OF ATOMS OF DIFFERENT ELEMENTS?

3.2.2 ATOMIC MASS

3.2.3 HOW DO ATOMS EXIST?

3.3 What is a Molecule?

3.3.1 MOLECULES OF ELEMENTS

3.3.2 MOLECULES OF COMPOUNDS

3.3.3 WHAT IS AN ION?

3.4 Writing Chemical Formulae

3.4.1 FORMULAE OF SIMPLE COMPOUNDS

3.5 Molecular Mass and Mole Concept

3.5.1 MOLECULAR MASS

3.5.2 FORMULA UNIT MASS

3.5.3 MOLE CONCEPT.

NCERT Solutions Class 9 Science Chapter 4 Structure of The Atom Topics

4.1 Charged Particles in Matter

4.2 The Structure of an Atom

4.2.1 THOMSON’S MODEL OF AN ATOM

4.2.2 RUTHERFORD’S MODEL OF AN ATOM

4.2.3 BOHR’S MODEL OF ATOM

4.2.4 NEUTRONS

4.3 How are Electrons Distributed in Different Orbits (Shells)?

4.4 Valency

4.5 Atomic Number and Mass Number

4.5.1 ATOMIC NUMBER

4.5.2 MASS NUMBER

4.6 Isotopes

4.6.1 ISOBARS.

NCERT Solutions Class 9 Science Chapter 5 The Fundamental Unit of Life Topics

5.1 What are Living Organisms Made Up of?

5.2 What is a Cell Made Up of? What is the Structural Organisation of a Cell?

5.2.1 PLASMA MEMBRANE OR CELL MEMBRANE

5.2.2 CELL WALL

5.2.3 NUCLEUS

5.2.4 CYTOPLASM

5.2.5 CELL ORGANELLES.

NCERT Solutions Class 9 Science Chapter 6 Tissues Topics

6.1 Are Plants and Animals Made of Same Types of Tissues?

6.2 Plant Tissues

6.2.1 MERISTEMATIC TISSUE

6.2.2 PERMANENT TISSUE

6.3 Animal Tissues

6.3.1 EPITHELIAL TISSUE

6.3.2 CONNECTIVE TISSUE

6.3.3 MUSCULAR TISSUE

6.3.4 NERVOUS TISSUE.

NCERT Solutions Class 9 Science Chapter 7 Diversity in Living Organisms Total

7.1 What is the Basis of Classification?

7.2 Classification and Evolution

7.3 The Hierarchy of Classification-Groups

7.3.1 MONERA

7.3.2 PROTISTA

7.3.3 FUNGI

7.3.4 PLANTAE

7.3.5 ANIMALIA

7.4 Plantae

7.4.1 THALLOPHYTA

7.4.2 BRYOPHYTA

7.4.3 PTERIDOPHYTA

7.4.4 GYMNOSPERMS

7.4.5 ANGIOSPERMS

7.5 Animalia

7.5.1 PORIFERA

7.5.2 COELENTERATA

7.5.3 PLATYHELMINTHES

7.5.4 NEMATODA

7.5.5 ANNELIDA

7.5.6 ARTHROPODA

7.5.7 MOLLUSCA

7.5.8 ECHINODERMATA

7.5.9 PROTOCHORDATA

7.5.10 VERTEBRATA

7.6 Nomenclature.

NCERT Solutions Class 9 Science Chapter 8 Motion Topics

8.1 Describing Motion

8.1.1 MOTION ALONG A STRAIGHT LINE

8.1.2 UNIFORM MOTION AND NONUNIFORM MOTION

8.2 Measuring the Rate of Motion

8.2.1 SPEED WITH DIRECTION

8.3 Rate of Change of Velocity

8.4 Graphical Representation of Motion

8.4.1 DISTANCE–TIME GRAPHS

8.4.2 VELOCITY-TIME GRAPHS

8.5 Equations of Motion by Graphical Method

8.5.1 EQUATION FOR VELOCITY-TIME RELATION

8.5.2 EQUATION FOR POSITION-TIME RELATION

8.5.3 EQUATION FOR POSITION–VELOCITY RELATION

8.6 Uniform Circular Motion.

NCERT Solutions Class 9 Science Chapter 9 Force and Laws of Motion Topics

9.1 Balanced and Unbalanced Forces

9.2 First Law of Motion

9.3 Inertia and Mass

9.4 Second Law of Motion

9.4.1 MATHEMATICAL FORMULATION OF SECOND LAW OF MOTION

9.5 Third Law of Motion

9.6 Conservation of Momentum.

NCERT Solutions Class 9 Science Chapter 10 Gravitation Topics

10.1 Gravitation

10.1.1 UNIVERSAL LAW OF GRAVITATION

10.1.2 IMPORTANCE OF THE UNIVERSAL LAW OF GRAVITATION

10.2 Free Fall

10.2.1 TO CALCULATE THE VALUE OF g

10.2.2 MOTION OF OBJECTS UNDER THE INFLUENCE OF GRAVITATIONAL FORCE OF THE EARTH

10.3 Mass

10.4 Weight

10.4.1 WEIGHT OF AN OBJECT ON THE MOON

10.5 Thrust and Pressure

10.5.1 PRESSURE IN FLUIDS

10.5.2 BUOYANCY

10.5.3 WHY OBJECTS FLOAT OR SINK WHEN PLACED ON THE SURFACE OF WATER?

10.6 Archimedes’ Principle

10.7 Relative Density.

NCERT Solutions Class 9 Science Chapter 11 Work and Energy Topics

11.1 Work

11.1.1 NOT MUCH ‘WORK’ IN SPITE OF WORKING HARD!

11.1.2 SCIENTIFIC CONCEPTION OF WORK

11.1.3 WORK DONE BY A CONSTANT FORCE

11.2 Energy

11.2.1 FORMS OF ENERGY

11.2.2 KINETIC ENERGY

11.2.3 POTENTIAL ENERGY

11.2.4 POTENTIAL ENERGY OF AN OBJECT AT A HEIGHT

11.2.5 ARE VARIOUS ENERGY FORMS INTER CONVERTIBLE?

11.2.6 LAW OF CONSERVATION OF ENERGY

11.3 Rate of Doing Work

11.3.1 COMMERCIAL UNIT OF ENERGY.

NCERT Solutions Class 9 Science Chapter 12 Sound Topics

12.1 Production of Sound

12.2 Propagation of Sound

12.2.1 SOUND NEEDS A MEDIUM TO TRAVEL

12.2.2 SOUND WAVES ARE LONGITUDINAL WAVES

12.2.3 CHARACTERISTICS OF A SOUNDWAVE

12.2.4 SPEED OF SOUND IN DIFFERENT MEDIA

12.3 Reflection of Sound

12.3.1 ECHO

12.3.2 REVERBERATION

12.3.3 USES OF MULTIPLE REFLECTION OF SOUND

12.4 Range of Hearing

12.5 Applications of Ultrasound

12.5.1 SONAR

12.6 Structure of Human Ear.

NCERT Solutions Class 9 Science Chapter 13 Why Do We Fall ill Topics

13.1 Health and its Failure

13.1.1 THE SIGNIFICANCE OF ‘HEALTH’

13.1.2 PERSONAL AND COMMUNITY ISSUES BOTH MATTER FOR HEALTH

13.1.3 DISTINCTIONS BETWEEN ‘HEALTHY’ AND ‘DISEASE-FREE’

13.2 Disease and Its Causes

13.2.1 WHAT DOES DISEASE LOOK LIKE?

13.2.2 ACUTE AND CHRONIC DISEASES

13.2.3 CHRONIC DISEASES AND POOR HEALTH

13.2.4 CAUSES OF DISEASES

13.2.5 INFECTIOUS AND NON-INFECTIOUS CAUSES

13.3 Infectious Diseases

13.3.1 INFECTIOUS AGENTS

13.3.2 MEANS OF SPREAD

13.3.3 ORGAN-SPECIFIC AND TISSUE-SPECIFIC MANIFESTATIONS

13.3.4 PRINCIPLES OF TREATMENT

13.3.5 PRINCIPLES OF PREVENTION.

NCERT Solutions Class 9 Science Chapter 14 Natural Resources Topics

14.1 The Breath of Life: Air

14.1.1 THE ROLE OF THE ATMOSPHERE IN CLIMATE CONTROL

14.1.2 THE MOVEMENT OF AIR: WINDS

14.1.3 RAIN

14.1.4 AIR POLLUTION

14.2 Water: A Wonder Liquid

14.2.1 WATER POLLUTION

14.3 Mineral Riches in the Soil

14.4 Biogeochemical Cycles

14.4.1 THE WATER-CYCLE

14.4.2 THE NITROGEN-CYCLE

14.4.3 THE CARBON-CYCLE

14.4.4 THE OXYGEN-CYCLE

14.5 Ozone Layer.

NCERT Solutions Class 9 Science Chapter 15 Improvement in Food Resources Topics

15.1 Improvement in Crop Yields

15.1.1 CROP VARIETY IMPROVEMENT

15.1.2 CROP PRODUCTION MANAGEMENT

15.1.3 CROP PROTECTION MANAGEMENT

15.2 Animal Husbandry

15.2.1 CATTLE FARMING

15.2.2 POULTRY FARMING

15.2.3 FISH PRODUCTION

15.2.4 BEE-KEEPING.

These CBSE Class 9 NCERT Solutions of Force and Laws of Motion will help you to practice all the topics in the chapter with ease and score maximum marks in the examination.

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