- Introduction
- Properties of Rational Numbers
- Representation of Rational Numbers on the Number Line
- Rational Numbers between Two Rational Numbers
- Summary

- Introduction
- Solving Equations which have Linear Expressions on one Side
- Some Applications
- Solving Equations having the Variable on both Sides
- Some More Applications
- Reducing Equations to Simpler Form
- Summary

- Introduction
- Polygons
- Classification of polygons
- Diagonals
- Regular and irregular polygons
- Angle sum property
- Kinds of Quadrilaterals
- Trapezium
- Kite
- Parallelogram
- Diagonals of a parallelogram
- Some Special Parallelograms
- Rhombus
- A rectangle
- A square

- Introduction
- Constructing a Quadrilateral
- When the Lengths of Four Sides and a Diagonal are given
- When Two Diagonals and Three Sides are given
- When Two Adjacent sides and Three Angles are known
- When three sides and two included angles are given
- Some Special Cases
- Summary

- Looking for Information
- Organising Data
- Grouping Data
- Bars with a difference Circle Graph or Pie Chart
- Chance and Probability
- Summary

- Introduction
- Finding the Square of a Number
- Square Roots
- Finding square roots Finding square root through repeated subtraction
- Finding square root through prime factorisation
- Finding square root by division method
- Summary

- Introduction
- Cubes
- Smallest multiple that is a perfect cube
- Cube Roots
- Cube root through prime factorisation method
- Summary

- Recalling Ratios and Percentages
- Finding the Increase or Decrease Per cent
- Finding Discounts
- Prices Related to Buying and Selling (Profit and Loss)
- Finding cost price/selling price, profit percentage/loss percentage Sales Tax/Value Added Tax
- Compound Interest
- Rate Compounded Annually or Half Yearly(Semi Annually)
- Summary
- Introduction

- What are Expressions
- Terms, Factors and Coefficients
- Monomials, Binomials and Polynomials
- Like and Unlike Terms
- Addition and Substraction of Algebraic Expressions
- Multiplying a Monomial by a Polynomial
- Multiplying a monomial by a Binomial Multiplying a Polynomial by a Polynomial
- Multiplying a binomial by a Trinomial
- What is an Identity
- Standard Identities
- Applying Identities
- Summary
- Introduction

- Introduction
- Views of 3D-Shapes
- Mapping Space Around Us
- Faces, Edges and Vertices
- Summary

- Introduction
- Let us Recall
- Area of Trapezium
- Area of a General Quadrilateral
- Solid Shapes
- Surface Area of Cube, Cuboid and Cylinder
- Volume of Cube, Cuboid and Cylinder
- Volume and Capacity
- Summary

- Introduction
- Powers with Negative Exponents
- Laws of Exponents
- Use of Exponents to Express Small Numbers in Standard Fo
- Comparing very large and very small numbers

- Introduction
- Direct Proportion
- Inverse Proportion
- Summary

- Introduction
- What is Factorisation?
- Method of common factors Factorisation by regrouping terms Factorisation using Identities Factors of the form ( x + a) ( x + b Division of Algebraic Expressions
- Division of a Polynomial by a Monomial Division of Algebraic Expressions continued(Polynomial
- Summary

- Introduction
- A Bar Graph A Pie Graph (or a circle-graph) A Line Graph Linear Graphs
- Coordinates Some Applications
- Summary

- Introduction
- Numbers in General Form
- Games with Numbers
- Letters for Digits
- Tests of Divisibility
- Summary

- Force â€“ A Push or a Pull
- Forces are due to an Interaction
- Exploring Forces
- A Force can Change the State of Motion
- Force can Change the Shape of an Object
- Contact Forces
- Muscular Force Friction Non-contact Forces
- Pressure
- Pressure exerted by Liquids and Gases
- Atmospheric Pressure

- Force of Friction
- Factors affecting Friction
- Friction : A Necessary Evil
- Increasing and Reducing Friction
- Wheels Reduce Friction
- Fluid Friction

- Sound is Produced by a Vibrating Body
- Sound Produced by Humans
- Sound Needs a Medium for Propagation
- We hear Sound through Our Ears
- Amplitude, Time Period And Frequency Of a Vibration
- Audible and Inaudible Sounds
- Noise and Music
- Noise Pollution

- Do Liquids Conduct Electricity?
- Chemical Effects of Electric Current
- Electroplating

- Lightning
- Charging by rubbing
- Types of Charges and their Interaction
- Lightning Safety
- Lightning Conductors Earthquakes

- What makes Things Visible
- Laws of Reflection
- Regular and Diffused Reflection
- Multiple Images
- Sunlight and White or Coloured
- What is inside Our Eyes?
- Care of Eyes
- What is a Braille System?

- The Moon
- The Moons Surface The Stars
- Constellations
- The Solar System
- The Planets The Sun Mercury (Budh) Venus (Shukra) The Earth Mars (Mangal) Jupiter (Brihaspati) Saturn (Shani) Uranus Neptune Some other members of Solar system
- Asteroids Comets Meteors and Meteorites Artificial Satellites

- What are Synthetic Fibres?
- Types of Synthetic Fibres
- Rayon Nylon Polyester Acrylic Characteristics of Synthetic Fibres
- Plastics, Plastics as Materials of Choice
- Plastics and the Environment

- Physical Properties of Metals and Non-metals
- Chemical Properties of Metals and Non-metals
- Reaction with Oxygen Reaction with Water Reactions with Acids Reactions with Bases Displacement Reactions Uses of Metals and Nonmetals

- Coal
- Story of Coal Coke Coal tar Coal gas Petroleum and refining of petroleum
- Natural Gas
- Some Natural Resources are Limited

- What is Combustion?
- How do We Control Fire?
- Types of Combustion
- Flame
- Structure of a Flame
- What is a Fuel?
- Burning of Fuels Leads to Harmful Products Fuel Efficiency

- Air Pollution
- How does Air Get Polluted?
- Case study :The Taj Mahal
- Greenhouse Effect
- What can be Done?
- Water Pollution
- How does Water Get Polluted?
- What is Potable Water and How is Water Purified ?

- Agricultural Practices
- Kharif Crops and Rabi crops Basic Practices of Crop Production
- Preparation of Soil
- Sowing
- Adding Manure and Fertilisers
- Irrigation
- Protection from Weeds
- Harvesting
- Storage
- Food from Animals

- Microorganisms
- Where do Microorganisms Live?
- Microorganisms and Us- Commercial and medicinal use
- vaccine Harmful Microorganisms
- Food Poisoning Food Preservation
- Nitrogen Fixation
- Nitrogen cycle

- Deforestation and Its Causes
- Consequences of Deforestation
- Conservation of Forest and Wildlife
- Biosphere Reserve
- Flora and Fauna
- Endemic Species
- Wildlife Sanctuary
- National Park
- Red Data Book
- Migration
- Reforestation and Recycling of Paper

- Discovery of the Cell
- The Cell
- Organisms show Variety in Cell Number, Shape and Size
- Cell Structure and Function
- Parts of the Cell
- Cell Membrane Cytoplasm Nucleus Comparison of Plant and Animal Cells

- Modes of Reproduction
- Sexual Reproduction
- Male Reproductive Organs Female Reproductive Organs Fertilization Development of Embryo Viviparous and Oviparous Animals Young Ones to Adults Asexual Reproduction

- Adolescence and Puberty
- Changes at Puberty
- Increase in Height Change in Body Shape Voice Change Increased Activity of Sweat and Sebaceous Glands Development of Sex Organs Reaching Mental, Intellectual and Emotional Maturity Secondary Sexual Characters
- Role of Hormones in Initiating Reproductive Function
- Reproductive Phase of Life in Humans
- How is the Sex of the Baby determined?
- Hormones other than Sex Hormones
- Role of Hormones in completing the Life History of Insec
- Reproductive Health
- Nutritional Needs of the Adolescents Personal Hygiene Physical exercise Say NO to Drugs

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