Science 9th std (TN 9th Science English Medium)

Online Study, Important Questions with Answer Key, Book back Exercise answers and solution, Question Papers, Textbook, Students Guide, Study Material

Important questions and answers, Online Study Material, Lecturing Notes, Assignment, Reference, Wiki

Science 9th std

9th Science



Physics

Chapter 1: Measurement


Measurement and Measuring Instruments
Physical Quantities and Units
SI System of Units
Fundamental Units of SI System
Unit?Prefixes
Rules and Conventions for Writing SI Units
Vernier caliper and Screw Gauge
Screw Gauge
Measuring Mass
Accuracy in Measurements
One Mark Questions Answers
Answer the following questions

Chapter 2: Motion


Motion
State of Rest and Motion
Types of Motion
Distance and Displacement
Uniform and Non Uniform Motion
Speed, Velocity and Acceleration
Graphical Representation of Motion along a Straight Line
Equations of Motion
Centripetal Acceleration and Centripetal Force
Centrifugal Force
Summary of Motion
One Mark Questions Answers
Answer the following questions

Chapter 3: Fluids


Fluids
Thrust and Pressure
Pressure in fluids
Atmospheric pressure
Pascal's Law
Density
Buoyancy
Archimedes' Principle
Laws of flotation
One Mark Questions Answers
Answer the following questions

Chapter 4: Electric Charge And Electric Current


Introduction
Electric charges
Electric current
Electric circuit diagram
Effects of electric current
Types of current
Safe handling of electrical energy
One Mark Questions Answers
Answer the following questions

Chapter 5: Magnetism and Electromagnetism


Magnetism and Electromagnetism
Magnetic field (B)
Magnetic Field Lines
Magnetic effect of current
Force on a current carrying conductor in a magnetic field
Force on parallel current carrying conductors
Electric motor
Electromagnetic Induction
Electric generator
Transformer
Applications of Electromagnets
Points to Remember
One Mark Questions Answers
Answer the following questions

Chapter 6: Light


Light
Reflection of light
Curved Mirrors
Image Formed by Curved Mirrors
Real and Virtual Image
Concave Mirror
Convex Mirror
Speed of light
Total Internal Reflection
One Mark Questions Answers
Answer the following questions

Chapter 7: Heat


Introduction
Effects of Heat
Transfer of Heat
Concept of temperature
Specific Heat capacity
Heat capacity or Thermal capacity
Change of state
Latent Heat
One Mark Questions Answers
Answer the following questions

Chapter 8: Sound


Sound
Production of sound
Propagation of sound waves
Characteristics of a sound wave
Distinguishing different sounds
Speed of sound
Reflection of sound
Echo
Reverberation
Ultrasonic sound or Ultrasound
SONAR
Electrocardiogram (ECG)
Structure of human ear
One Mark Questions Answers
Answer the following questions

Chapter 9: Universe


Universe
Building Block of the Universe
The Solar System
Orbital Velocity
Time period of a Satellite
Kepler’s Laws
International Space Station
One Mark Questions Answers
Answer the following questions

Chemistry

Chapter 1: Matter Around Us


Matter Around Us
Is Matter Particulate or Continuous
Evidence for Existence of Particles?
Kinetic Particle Theory of Three States of Matter-Solid, Liquid and Gas
Solids
Liquids
Gases
Effect of Temperature on Movement of Particles
Changes in States of Matter and the Kinetic Particle Theory
Melting
Freezing
Boiling
Evaporation
Sublimation
Effect of Pressure on Gases
Classification of Matter Based on Composition
Element - Matter Around Us
Compound - Matter Around Us
Differences between Mixtures and Compounds
Types of Mixtures
Colloidal Solutions
Separation of Mixtures
One Mark Questions Answers
Answer the following questions

Chapter 2: Atomic Structure


Atomic Structure
Laws of Chemical combination
Law of Reciprocal Proportions
More about of Structure of Atoms
Discovery of Nucleus
Discovery of Neutrons
Isotopes (Iso – same, topo – place, Isotope – same place
One Mark Questions Answers
Answer the following questions

Chapter 3: Periodic Classification of Elements


Periodic classification of Elements
Early Concepts of Classification of Elements
Modern Periodic Table
Metals, Non-Metals and Metalloids
Alloys
One Mark Questions Answers
Answer the following questions

Chapter 4: Chemical Bonding


Chemical bonding
Kossel - Lewis approach to chemical bonds
Lewis dot structure
Types of chemical bond
Oxidation, Reduction and Redox reactions
Problems on determination of Oxidation Number
One Mark Questions Answers
Answer the following questions

Chapter 5: Acids, Bases and Salts


Acids, Bases and Salts
What are Acids?
What are Bases?
Tests for Acids and Bases
How strong are Acid or Base solutions?
What are Salts?
One Mark Questions Answers
Answer the following questions

Chapter 6: Carbon and its Compounds


Carbon and its Compounds
Discovery of Carbon-Milestones
Compounds of Carbon - Classification
Special Features of Carbon
Physical properties of Carbon and its compounds
Chemical Properties of Carbon and its compounds
Carbon compounds in everyday life
Plastics - Catenated long chain carbon compounds
New rules to make Tamil Nadu plastic free
Role of students in the prevention of plastic pollution
One Mark Questions Answers
Answer the following questions

Chapter 7: Applied Chemistry


Applied Chemistry
Nanochemistry
Pharmaceutical chemistry: Drugs
Electrochemical Cell
Applications of Radiochemistry
Dye Chemistry
Agricultural and Food Chemistry
Forensic Chemistry
Applications of Applied Chemistry
One Mark Questions Answers
Answer the following questions

Biology

Chapter 1: Animal Kingdom


Living World of Animals - Diversity in Living Organism - Kingdom Animalia
Classification of Living Organisms
Criteria for Classification of Animal Kingdom
Phylum – Protozoa
Phylum – Porifera (Pore bearers)
Phylum – Coelenterata or Cnidaria
Phylum: Platyhelminthes - (Flat worms)
Phylum – Nematoda Aschelminthes (Round worms)
Phylum - Annelida - (Segmented Worms)
Phylum - Arthropoda - (Organisms with Jointed Legs)
Phylum Mollusca - (Soft Bodied Animals)
Phylum Echinodermata - (Spiny Skinned Animals)
Phylum Chordata
Division Vertebrata (Craniata)
Super Class Tetrapoda
Binomial Names of Common Animals
One Mark Questions Answers
Answer the following questions

Chapter 2: Organisation of Tissues


Organization of Tissues
Plant Tissues
Meristematic Tissues (Meristems)
Permanent Tissues
Simple Tissues
Complex tissues
Animal Tissues
Epithelial Tissues
Connective Tissue
Muscular Tissue
Nervous Tissue
Cell division
Types of Cell Division
One Mark Questions Answers
Answer the following questions

Chapter 3: Plant Physiology


Living World of Plants - Plant Physiology
Do they Move on their own Accord?
Do Plants Move?
Do Plants Actually Sense Light?
Types of Tropisms in Plants
More to Movement than Growth
What is Photosynthesis?
Food chain: the Link between Plants, Animals and Microorganisms
Respiration in plants
One Mark Questions Answers
Answer the following questions

Chapter 4: Organ Systems in Animals


Organ Systems in Animals
Human Digestive System
Human Excretory System
Human System Reproductive
Points to Remember
One Mark Questions Answers
Answer the following questions

Chapter 5: Nutrition and Health


Health and Hygiene-Food for Living
Classes of Nutrients
A Case Study - Health and Hygiene-Food for Living
Protein Energy Malnutrition (PEM)
Minerals – Functions and Deficiency Diseases
Vitaminosis
Methods of Food Preservation
Adulteration
One Mark Questions Answers
Answer the following questions

Chapter 6: World of Microbes


World of Microbes
Microbes and their Types
Applications of Microbes
Microbes and Diseases
Airborne Diseases
Waterborne Diseases
Vector Borne Diseases
Diseases Transmitted by Animals
Sexually Transmitted Diseases
Immunization
One Mark Questions Answers
Answer the following questions

Chapter 7: Economic Biology


Economic Biology
Horticulture
Manuring (Biomanuring)
Types of Biofertilizers
Medicinal Plants
Mushroom Cultivation
Hydroponics
Aeroponics
Aquaponics
Dairy Farming
Aquaculture
Pisciculture
Prawn Culture
Vermitechnology
Apiculture and Honey Bee
One Mark Questions Answers
Answer the following questions

Chapter 8: Environmental Science


Environmental Science
Biogeochemical cycles
Adaptations of plants
Adaptations of animals to Habitat, Temperature and Light
Water conservation
Farm ponds
Water recycling
IUCN (International Union for Conservation of Nature and Natural Resources)
One Mark Questions Answers
Answer the following questions

Computer

Chapter 0: Computer An Introduction


Computer – An Introduction
Parts of a Computer
Classification of Computer
Connecting the computer
Hardware and Software
Types of Software
System and Application Software types

Chapter 1: Libre office Impress


One Mark Questions Answers
Answer the following questions

Practical experiments I


Melting point of wax
Verification of Ohm's law
Mapping of magnetic field
Identifying an acid or a base
Identification of Plant and Animal tissues

Practical experiments II


Density of the material of the body denser than water
Laws of reflection of Sound
Economic Biology
Identification of Microbes
Life Cycle of Mosquito

Term I

Chapter 1: Measurement and Measuring Instruments


Measurement and Measuring Instruments
Physical Quantities and Units
SI System of Units
Fundamental Units of SI System
Unit?Prefixes
Rules and Conventions for Writing SI Units
Vernier caliper and Screw Gauge
Screw Gauge
Measuring Mass
Accuracy in Measurements
One Mark Questions Answers
Answer the following questions

Chapter 2: Motion


Motion
State of Rest and Motion
Types of Motion
Distance and Displacement
Uniform and Non Uniform Motion
Speed, Velocity and Acceleration
Graphical Representation of Motion along a Straight Line
Equations of Motion
Centripetal Acceleration and Centripetal Force
Centrifugal Force
Summary of Motion
One Mark Questions Answers
Answer the following questions

Chapter 3: Light


Light
Reflection of light
Curved Mirrors
Image Formed by Curved Mirrors
Real and Virtual Image
Concave Mirror
Convex Mirror
Speed of light
Total Internal Reflection
One Mark Questions Answers
Answer the following questions

Chapter 4: Matter Around Us


Matter Around Us
Is Matter Particulate or Continuous
Evidence for Existence of Particles?
Kinetic Particle Theory of Three States of Matter-Solid, Liquid and Gas
Solids
Liquids
Gases
Effect of Temperature on Movement of Particles
Changes in States of Matter and the Kinetic Particle Theory
Melting
Freezing
Boiling
Evaporation
Sublimation
Effect of Pressure on Gases
Classification of Matter Based on Composition
Element - Matter Around Us
Compound - Matter Around Us
Differences between Mixtures and Compounds
Types of Mixtures
Colloidal Solutions
Separation of Mixtures
One Mark Questions Answers
Answer the following questions

Chapter 5: Atomic Structure


Atomic Structure
Laws of Chemical combination
Law of Reciprocal Proportions
More about of Structure of Atoms
Discovery of Nucleus
Discovery of Neutrons
Isotopes (Iso – same, topo – place, Isotope – same place
One Mark Questions Answers
Answer the following questions

Chapter 6: Living World of Plants Plant Physiology


Living World of Plants - Plant Physiology
Do they Move on their own Accord?
Do Plants Move?
Do Plants Actually Sense Light?
Types of Tropisms in Plants
More to Movement than Growth
What is Photosynthesis?
Food chain: the Link between Plants, Animals and Microorganisms
Respiration in plants
One Mark Questions Answers
Answer the following questions

Chapter 7: Living World of Animals Diversity in Living Organism Kingdom Animalia


Living World of Animals - Diversity in Living Organism - Kingdom Animalia
Classification of Living Organisms
Criteria for Classification of Animal Kingdom
Phylum – Protozoa
Phylum – Porifera (Pore bearers)
Phylum – Coelenterata or Cnidaria
Phylum: Platyhelminthes - (Flat worms)
Phylum – Nematoda Aschelminthes (Round worms)
Phylum - Annelida - (Segmented Worms)
Phylum - Arthropoda - (Organisms with Jointed Legs)
Phylum Mollusca - (Soft Bodied Animals)
Phylum Echinodermata - (Spiny Skinned Animals)
Phylum Chordata
Division Vertebrata (Craniata)
Super Class Tetrapoda
Binomial Names of Common Animals
One Mark Questions Answers
Answer the following questions

Chapter 8: Health and Hygiene Food for Living


Health and Hygiene-Food for Living
Classes of Nutrients
A Case Study - Health and Hygiene-Food for Living
Protein Energy Malnutrition (PEM)
Minerals – Functions and Deficiency Diseases
Vitaminosis
Methods of Food Preservation
Adulteration
One Mark Questions Answers
Answer the following questions

Chapter 9: Computer An Introduction


Computer – An Introduction
One Mark Questions Answers
Answer the following questions

Term II

Chapter 1: Heat


Introduction
Effects of Heat
Transfer of Heat
Concept of temperature
Specific Heat capacity
Heat capacity or Thermal capacity
Change of state
Latent Heat
One Mark Questions Answers
Answer the following questions

Chapter 2: Electric charge and electric current


Introduction
Electric charges
Electric current
Electric circuit diagram
Effects of electric current
Types of current
Safe handling of electrical energy
One Mark Questions Answers
Answer the following questions

Chapter 3: Magnetism and Electromagnetism


Magnetism and Electromagnetism
Magnetic field (B)
Magnetic Field Lines
Magnetic effect of current
Force on a current carrying conductor in a magnetic field
Force on parallel current carrying conductors
Electric motor
Electromagnetic Induction
Electric generator
Transformer
Applications of Electromagnets
Points to Remember
One Mark Questions Answers
Answer the following questions

Chapter 4: Periodic classification of Elements


Periodic classification of Elements
Early Concepts of Classification of Elements
Modern Periodic Table
Metals, Non-Metals and Metalloids
Alloys
One Mark Questions Answers
Answer the following questions

Chapter 5: Chemical bonding


Chemical bonding
Kossel - Lewis approach to chemical bonds
Lewis dot structure
Types of chemical bond
Oxidation, Reduction and Redox reactions
Problems on determination of Oxidation Number
One Mark Questions Answers
Answer the following questions

Chapter 6: Acids, Bases and Salts


Acids, Bases and Salts
What are Acids?
What are Bases?
Tests for Acids and Bases
How strong are Acid or Base solutions?
What are Salts?
One Mark Questions Answers
Answer the following questions

Chapter 7: Organization of Tissues


Organization of Tissues
Plant Tissues
Meristematic Tissues (Meristems)
Permanent Tissues
Simple Tissues
Complex tissues
Animal Tissues
Epithelial Tissues
Connective Tissue
Muscular Tissue
Nervous Tissue
Cell division
Types of Cell Division
One Mark Questions Answers
Answer the following questions

Chapter 8: Organ Systems in Animals


Organ Systems in Animals
Human Digestive System
Human Excretory System
Human System Reproductive
Points to Remember
One Mark Questions Answers
Answer the following questions

Chapter 9: Parts of a Computer


Parts of a Computer
Classification of Computer
Connecting the computer

Practical experiments


Melting point of wax
Verification of Ohm's law
Mapping of magnetic field
Identifying an acid or a base
Identification of Plant and Animal tissues

Term III

Chapter 1: Fluids


Fluids
Thrust and Pressure
Pressure in fluids
Atmospheric pressure
Pascal's Law
Density
Buoyancy
Archimedes' Principle
Laws of flotation
One Mark Questions Answers
Answer the following questions

Chapter 2: Sound


Sound
Production of sound
Propagation of sound waves
Characteristics of a sound wave
Distinguishing different sounds
Speed of sound
Reflection of sound
Echo
Reverberation
Ultrasonic sound or Ultrasound
SONAR
Electrocardiogram (ECG)
Structure of human ear
One Mark Questions Answers
Answer the following questions

Chapter 3: Universe


Universe
Building Block of the Universe
The Solar System
Orbital Velocity
Time period of a Satellite
Kepler’s Laws
International Space Station
One Mark Questions Answers
Answer the following questions

Chapter 4: Carbon and its Compounds


Carbon and its Compounds
Discovery of Carbon-Milestones
Compounds of Carbon - Classification
Special Features of Carbon
Physical properties of Carbon and its compounds
Chemical Properties of Carbon and its compounds
Carbon compounds in everyday life
Plastics - Catenated long chain carbon compounds
New rules to make Tamil Nadu plastic free
Role of students in the prevention of plastic pollution
One Mark Questions Answers
Answer the following questions

Chapter 5: Applied Chemistry


Applied Chemistry
Nanochemistry
Pharmaceutical chemistry: Drugs
Electrochemical Cell
Applications of Radiochemistry
Dye Chemistry
Agricultural and Food Chemistry
Forensic Chemistry
Applications of Applied Chemistry
One Mark Questions Answers
Answer the following questions

Chapter 6: Environmental Science


Environmental Science
Biogeochemical cycles
Adaptations of plants
Adaptations of animals to Habitat, Temperature and Light
Water conservation
Farm ponds
Water recycling
IUCN (International Union for Conservation of Nature and Natural Resources)
One Mark Questions Answers
Answer the following questions

Chapter 7: Economic Biology


Economic Biology
Horticulture
Manuring (Biomanuring)
Types of Biofertilizers
Medicinal Plants
Mushroom Cultivation
Hydroponics
Aeroponics
Aquaponics
Dairy Farming
Aquaculture
Pisciculture
Prawn Culture
Vermitechnology
Apiculture and Honey Bee
One Mark Questions Answers
Answer the following questions

Chapter 8: World of Microbes


World of Microbes
Microbes and their Types
Applications of Microbes
Microbes and Diseases
Airborne Diseases
Waterborne Diseases
Vector Borne Diseases
Diseases Transmitted by Animals
Sexually Transmitted Diseases
Immunization
One Mark Questions Answers
Answer the following questions

Chapter 9: Hardware and Software


Hardware and Software
Types of Software
System and Application Software types

Practical experiments


Density of the material of the body denser than water
Laws of reflection of Sound
Economic Biology
Identification of Microbes
Life Cycle of Mosquito

9th Science Teachers Manual - Download Pdf
9th Science Textbook Term 1 - Download Pdf
9th Science Textbook Term 2 - Download Pdf


Download Anna University Notes Android App
Science 9th std - Start Reading Online


Privacy Policy, Terms and Conditions, DMCA Policy and Compliant, Contact

Copyright Β© 2018-2023 BrainKart.com; All Rights Reserved. Developed by Therithal info, Chennai.