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
Physics
Laws of reflection
Physics
Sound propagation requires material medium
Physics
Structure of human ear
Topics Covered
Force – 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
Chemistry
Combustion
Chemistry
Effect of pollution on human beings
Chemistry
Water - A wonder liquid
Topics Covered
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 ?
Biology
Activity to show a plant cell
Biology
Nitrogen cycle
Biology
Protection of crops
Topics Covered
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