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Mathematics

Criteria for Simillarity of Triangles

Mathematics

Distance Formula

Mathematics

Finding the Height of the Tree and Width of the River

Topics Covered

Introduction
Euclids Division Lemma
Theorem for Euclid’s Division Lemma The Fundamental Theorem of Arithmetic
Revisiting Irrational Numbers
Theorem Related to Revisiting Irrational Numbers Revisiting Rational Numbers and Their Decimal Expansions
Theorem Related to Revisiting Rational Numbers and Their Decimal Expansions Summary

Introduction
Geometrical Meaning of the Zeroes of a Polynomial
Relationship between Zeroes and Coefficients of a Polynomia
Division Algorithm for Polynomials
Summary

Introduction
Pair of Linear Equations in Two Variables
Graphical Method of Solution of a Pair of Linear Equations
Algebraic Methods of Solving a Pair of Linear Equations
Substitution Method Elimination Method Cross - Multiplication Method Equations Reducible to a Pair of Linear Equations in Two Variables
Summary

Introduction
Quadratic Equations
Solution of a Quadratic Equation by Factorisation
Solution of a Quadratic Equation by Completing the Square
Nature of Roots
Summary

Introduction
Arithmetic Progressions
nth Term of an AP
Sum of First n Terms of an AP
Summary

Introduction
Similar Figures
Similarity of Triangles
Basic Proportionality Theorem Criteria for Similarity of Triangles
Areas of Similar Triangles
Theorem - The ratio of the areas of two similar triangles Pythagoras Theorem
Pythagoras Theorem Proof for Pythagoras Theorem Converse of Pythagoras Theorem Summary

Introduction
Distance Formula
Section Formula
Area of a Triangle
Summary

Introduction
Trigonometric Ratios
Trigonometric Ratios of Some Specific Angles
Trigonometric Ratios of Complementary Angles
Trigonometric Identities
Summary

Introduction
Heights and Distances
Summary

Introduction
Tangent to a Circle
Number of Tangents from a Point on a Circle
Summary

Introduction
Division of a Line Segment
Construction of Tangents to a Circle
Construction 11.3 To construct the tangents to a circle from a point outside it. Summary

Introduction
Perimeter and Area of a Circle A Review
Areas of Sector and Segment of a Circle
Areas of Combinations of Plane Figures
Summary

Introduction
Surface Area of a Combination of Solids
Volume of a Combination of Solids
Conversion of Solid from One Shape to Another
Frustum of a Cone
Summary

Introduction
Mean of Grouped Data
Mode of Grouped Data
Median of Grouped Data
Graphical Representation of Cumulative Frequency Distribution
Summary

Introduction
Probability A Theoretical Approach
Summary

Physics

Causes of electric current

Physics

Electric generators and Dynamo

Physics

Power of accomodation of eye

Topics Covered

Physics

Reflection of Light
Spherical Mirrors
Image Formation by Spherical Mirrors Representation of Images Formed by Spherical Mirrors Using Ray Diagrams Sign Convention for Reflection by Spherical Mirrors Mirror Formula and Magnification Refraction of Light
Refraction through a Rectangular Glass Slab The Refractive Index Refraction by Spherical Lenses Image Formation by Lenses Image Formation in Lenses Using Ray Diagrams Sign Convention for Spherical Lenses Lens Formula and Magnification Power of a Lens

The Human eye
Power of Accommodation Defects of Vision and their Correction
Refraction of Light through a Prism
Dispersion of White Light by a Glass Prism
Atmospheric Refraction
Scattering of Light
Tyndall Effect Scattering of light,blue colour of the sky and Colour of the Sun at Sunrise and Sunset

Electric Current and Circuit
Electric Potential and Potential difference
Circuit diagram
OHMS Law
Factors on which the resistance of a conductor depends
Resistance of a system of Resistors
Resistors in Series or Parellel Heating effect of Electric Current
Practical applications of Heating Efect of Electric Current Electric power

Magnetic Feld and Field Lines
Magnetic Field due to a Current Carrying conductor
Magnetic Field due to a Current through a Straight Conductor Right-Hand Thumb Rule Magnetic Field due to a Current through a Circular Loop Magnetic Field due to a Current in a Solenoid Force on a Current Carrying Conductor in a Magnetic Field
Electric Motor
Electro Magnetic Induction
Electric Generator
Domestic Electric Circuits

What is a Good Source of Energy
Conventional Sources of Energy
Fossil Fuels Thermal Power Plant Hydro Power Plants Improvements in the Technology for using Conventional Sources of Energy Alternative or Non-Conventional Sources of Energy
Solar Energy Energy from the Sea Geothermal Energy Nuclear Energy Environmental Consequences
How long will an Energy Source Last Us?

Chemistry

Chemical Properties of metals

Chemistry

Metallurgy-Concentration of Ore

Chemistry

Rate of reactions

Topics Covered

Chemical Equations
Writing a Chemical Equation Balanced Chemical Equations Types of Chemical Reactions
Combination Reaction Decomposition Reactions Displacement Reactions Double Displacement Reactions Oxidation and Reduction Effects of Oxidation Reaction in Everyday Life
Corrosion Rancidity

Under Standing the Chemical Properties of Acids and Bases
Acids and Bases in the Laboratory Reaction of acids and bases with Metals Reaction of Metal Carbonates and Metal Hydrogen Carbonates with acids How do Acids and Bases React with each other? Reaction of Metallic Oxides with Acids and Non-metallic Oxide with Base What do all Acids and all Bases have in Common?
What Happens to an Acid or a Base in a Water Solution? How Strong are Acid or Base Solutions?
Importance of pH in Everyday Life More About Salts
Family of Salts pH of Salts Chemicals from Common Salt Are the Crystals of salts really dry

Physical Properties
Metals Non-metals Chemical Properties of Metals
Reaction Metals with Air, Water, Acids and with Solutions of other Metal Salts The Reactivity Series How do Metals and Non-Metals React?
Properties of Ionic Compounds Occurence of Metals
Extraction of metals low in reactivity series,Middle of the reactivity series and Enrichment of Ores Corrosion
Prevention of Corrosion

Bonding in Carbon- The Covalent bond
Versatile Nature of Carbon
Saturated and Unsaturated Carbon Compounds Chains, Branches and Rings Will you be my Friend? Homologous Series Nomenclature of Carbon Compounds Chemical Properties of Carbon Compounds
Combustion Oxidation Addition Reaction Substitution Reaction Some Important Carbon Compounds Ethanol and Ethanoic Acid
Properties of Ethanol and Ethanoic acid Soaps and Detergents

Making Order out of Chaos Early Attempts at the Classification of Elements
Dobereiner's Triads Newlands' Law of Octaves Making Order out of Chaos Mendeleevs Periodic Table
Achievements and Limitations of Mendeleev’s Periodic Table Making Order out of Chaos â€“ The Modern Periodic Table
Position of Elements in the Modern Periodic Table Trends in the Modern Periodic Table

Biology

Evidences of paleonthology

Biology

Structure and working of neurons

Biology

The Simple Reflex Arc

Topics Covered

What are Life Processes?
Nutrition
Autotrophic Nutrition Heterotrophic Nutrition How do Organisms obtain their Nutrition Nutrition in Human Beings Respiration
Respiration in Human beings Human Respiratory System Respiration in Plants Transportation
Transportation in Human beings Our Pump - the Heart Oxygen enters the Blood in the Lungs The Tubes - Blood Vessels Maintenance by Platelets Lymph Transportation in Plants Transport of Water Transport of Food and other Substances Excretion
Excretion in Human beings Excretion in Plants

Animals- Nervous System
What Happens in Reflex Actions Human Brain How are these Tissues Protected? How does the Nervous Tissue cause Action? Coordination in Plants
Immediate Response to Stimulus Movement Due to Growth Hormones in Animals

Reproduction
The Importance of Variation Modes of Reproduction used by Single Organisms
Fission Fragmentation Regeneration Budding Vegetative Propagation Spore Formation Sexual Reproduction
Why the Sexual Mode of Reproduction? Sexual Reproduction in Flowering Plants Reproduction in Human Beings Male Reproductive System Female Reproductive System What happens when the Egg is not Fertilised Reproductive Health

Accumulation of Variation during Reproduction
Heredity
Inherited traits Rules for the inheritance of Traits ? Mendels contribut How do these Traits get Expressed? Sex Determination Evolution
Acquired and Inherited Traits Speciation
Evolution and Classification
Tracing Evolutionary Relationships Fossils Evolution by Stages Evolution should not be Equated with PROGRESS
Human Evolution

What Happens when We add Our Waste to the Environment?
Eco System and its Components
Food Chains and Webs How do Our Activities Affect the Environment?
Ozone Layer and how it is getting Depleted Managing the Garbage we Produce

Why do We need to Manage Our Resources?
Forests and Wild Life
Stakeholders Sustainable Management Water for All
Dams Water Harvesting Coal and Petroleum
An Overview of Natural Resource Management