NCERT Solutions for Class 9 Science – Chapter-Wise PDF Download

Download PDFs for NCERT Solutions for Class 9 Science

Below are the download pdf links for NCERT Solutions for all 13 chapters of Class 9 Science. These solutions are prepared by experts in a very clear and comprehensive manner. Click on the Download PDF links given below to download chapter-wise NCERT Solutions for Class 9 Science.

NCERT Solutions for Class 9 Science

NCERT Class 9 Science books cover 13 chapters from Physics, Chemistry, and Biology. These Class 9 Science NCERT Solutions provide clear solutions of all the questions in the chapters, helping students build strong foundational concepts. Thus, it becomes helpful for students to read and understand each of the topics most easily and effectively from the NCERT. Click on the links given below to understand each chapter easily.

Chapter 1: Exploration: Entering the World of Secondary Science

Entering the World of Secondary Science is the basic chapter that explains how things work. Chapter 1 explains the science we are going to learn in Class 9 Science NCERT Book.

Chapter 2 Cell: The Building Block of Life

Class 9 Science Chapter 2 Cell: The Building Block of Life NCERT Solutions explains all the mid and end exercise NCERT questions. This helps students prepare effectively for school exams and form the basics of biology for competitive exams.

Topics covered in Chapter 2 are given below:

• Discovery of the Cell
• Cell Theory
• Plasma Membrane or Cell Membrane
• Mitochondria
• Plastids
• Endoplasmic Reticulum (RER and SER)
• Golgi Apparatus
• Ribosomes
• Vacuoles
• Differences Between Plant and Animal Cells
• Processes: Diffusion, Osmosis, Plasmolysis
• Cell Division: Mitosis and Meiosis

Chapter 3 Tissues in Action

Class 9 Science Chapter 3 Tissue in Action NCERT Solutions are detailed answers to all NCERT Book mid and end exercise questions. NCERT Solutions explains meristematic tissues in plants for growth, types of animal tissues, like epithelial, connective, muscular, and nervous tissues.

Topics covered in Chapter 3 are given below

• Plant Tissues
• Meristematic Tissue
• Permanent Tissue
• Animal Tissues
• Epithelial Tissue
• Connective Tissue
• Muscular Tissue
• Nervous Tissue
• Skeletal System
• Musculoskeletal System

Chapter 4 Describing Motion Around Us

Class 9 Scince Chapter 4 Describing Motion Around Us NCERT solutions are made to give clear, step-by-step answers for every question. These Class 9 Describing Motion Around Us These solutions are based on the latest NCERT textbook.

Topics covered in Chapter 4 are given below:

• Motion in a Straight Line

• Distance travelled and displacement
• Average speed and average velocity
• Average acceleration
• Graphical Representation of Motion
• Plotting graph
• Position-time graphs
• Velocity-time graphs
• Kinematic Equations for Motion in a Straight Line with Constant Acceleration
• Motion in a Plane
• Uniform circular motion

Chapter 5 Exploring Mixtures and their Separation

NCERT Solutions for Class 9 Science Chapter 5. Exploring Mixtures and Their Separation explains concepts like the dissolution of salt in water and why different components of air cannot be seen. These solutions are prepared to explain all these concepts easily.

Topics covered in Chapter 5 are given below:

• How Can We Classify Mixtures?
• Solutions
• Concentration of a solution
• How do we express concentration?
• Solubility of substances
• Methods of Separation of Homogeneous Mixtures
• Crystallization
• Distillation
• Paper Chromatography
• Separation of two immiscible liquids
• Sublimation
• Suspensions
• Colloids
• Tyndall Effect

Chapter 6 How Forces Affect Motion

Class 9 Science Chapter 6 NCERT Solutions: How Forces Affect Motion explains concepts like force, net force, laws of motion, inertia, momentum, and Newton’s laws with the help of solved questions in a simple way.

Topics covered in Chapter 6 are given below:

• Force
• Measuring the magnitude of a force
• Balanced and Unbalanced Forces
• The Force of Friction
• Newton’s First Law of Motion
• Newton’s Second Law of Motion
• Newton’s Third Law of Motion
• Forces Acting on a System of Objects

Chapter 7 Work, Energy, and Simple Machines

NCERT Solutions for Class 9 Science Chapter 7 Work, Energy, and Simple Machines are detailed explanation to NCERT questions they are made so that students can get the main ideas of concepts work done, kinetic energy and potential energy, power also.

Topics covered in Chapter 7 are given below

• Work Done by a Constant Force
• When is work done equal to zero?
• Positive and negative work done
• The Work-Energy Theorem
• Forms of Energy
• Mechanical Energy
• Kinetic energy
• Potential energy
• Conservation of mechanical energy
• Power
• Simple Machines

Chapter 8 Journey Inside the Atom

From the water we drink, the air we breathe, the food we eat to the huge atomic processes, atoms are everywhere around us. NCERT Solutions for Class 9 Science Chapter 8 Journey Inside the Atom, explains the discoveries and experiments that help to understand the structure of atoms.

Topics covered in Chapter 8 are given below:

• Atomic Models
• Thomson’s model of an atom
• Testing Thomson’s model: The gold foil experiment
• Bohr’s model of the atom
• Discovery of the Neutron
• Symbols of Elements
• Atomic Number
• Mass Number
• How Are Electrons Distributed in Different Energy Levels?
• Combining Capacity of an Atom: Valency
• Isotopes
• Isobars

Chapter 9 Atomic Foundations of Matter

NCERT Solutions for Class 9 Science Chapter 9 Atomic Foundations of Matter explains about the laws of chemical combinations, how atoms react and form bonds. These Atomic Foundations of Matter NCERT solutions are prepared by subject experts to help students understand the concepts easily.

Topics covered in Chapter 10 are given below

• Law of Conservation of Mass
• Law of Constant Proportions
• Dalton’s Atomic Theory
• How Atoms Combine?
• Covalent Bond
• Ionic bond
• Writing Chemical Formulae
• Properties of the Ionic and the Covalent Compounds
• Molecular Mass of Covalent Compounds

Chapter 10 Sound Waves: Characteristics and Applications

NCERT Solutions for Class 9 Science Chapter 10 Sound Waves Characteristics and Applications explains how waves propagate and travel. These solutions provide detailed solutions to all NCERT questions.

Topics covered in Chapter 11 are given below

• Production of Sound
• Propagation of Sound
• Sound Waves
• Energy of Sound Waves
• Graphical Representation of a Sound Wave
• Characteristics of a Sound Wave
• Amplitude and intensity of the sound waves
• Reflection of Sound
• Ultrasonic and Infrasonic Waves, and Their Applications

Chapter 11 Reproduction: How Life Continues

NCERT Solutions for Class 9 Science Chpater 11 How Life Continues explains how life continues in plants and animals. The reproduction chapter includes important topics such as asexual vs sexual reproduction, fertilisation, and human puberty in detail.

Topics covered in Chapter 11 are given below

• Asexual Reproduction
• vegetative propagation
• Sexual Reproduction
• Sexual reproduction in flowering plants
• Sexual Reproduction in Animals
• Reproduction in Animals
• Human Reproduction

Chapter 12 Patterns in Life: Diversity and Classification

NCERT Solutions for Class 9 Science Chapter 12 Diversity and Classification includes the importance of biodiversity, the need for classification, and the five-kingdom classification given by Whittaker.

Topics covered in Chapter 12 are given below

• India as a Biodiversity Hotspot
• How has the Biodiversity Evolved
• How to Classify Organisms
• Biological Classification Systems Over Time
• Five Kingdom Classification
• Kingdom Monera
• Kingdom Protista
• Kingdom Fungi
• Kingdom Plantae
• Kingdom Animalia
• Taxonomic Hierarchical Nature of Classification
• Fossils as Evidence of Evolution
• Biodiversity Under Threat

Chapter 13 Earth as a System: Energy, Matter, and Life

NCERT Solutions for Class 9 Science Chapter 13 Earth as a System: Energy, Matter and Life covers topics that explain how Earth supports life, how different spheres of earth work together to maintain balance on Earth and why is sun the primary source of energy for our planet, and how the small change in one sphere can effect entire system on Earth.

Topics covered in Chapter 13 are given below:

• Uneven Heating of the Earth
• Interaction of solar radiation on the Earth’s surface
• Latitude and Earth’s shape
• Role of the atmosphere
• Uneven Heating Causes Wind and Ocean Currents
• Local winds
• Planetary winds
• Ocean currents
• Biogeochemical Cycles
• Water cycle
• Carbon cycle
• Nitrogen cycle
• Oxygen cycle
• Human Impact on Earth’s Processes

Also Check

• NCERT Books Class 9 Maths
• NCERT Syllabus Class 9 Maths
• NCERT Books Class 9
• NCERT Syllabus Class 9
• NCERT Books for Class 9 Science