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8TH (Core)

8TH (Core)

Instructed By

Designmate designmater

8TH (Core)
8TH CBSE,8TH CBSE Mathematics,8TH CBSE Scienc

8TH CBSE Mathematics,8TH CBSE Science All chapters.
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PDF,Videos

Introduction to Rational Numbers .dm File

Rational Number: Introduction .dm File

Number System: Revision .dm File

Properties of Addition of Rational Numbers .dm File

Properties of multiplication of rational numbers .dm File

Properties of Real Numbers: Closure and Commutative .dm File

Properties of Real Numbers: Associative Law and Existence of .dm File

Properties of Real Numbers: Existence of Inverse and Distrib .dm File

Properties of unknown numbers .dm File

Rational Numbers on the Number Line and their Order Relation .dm File

Representing numbers on number line: Example .dm File

Equality of two rational numbers .dm File

Solving a linear equation (Example) .dm File

Solving linear equation .dm File

Solve the linear equation: 2x 7/2 = 9/2 .dm File

Solving a Linear Equation in One Variable (Balancing Method) .dm File

Application of linear equation (age and number problem) .dm File

Word problem on linear equation (Age) .dm File

Word problem on linear equation .dm File

Application: linear equation in one variable .dm File

Quadrilateral .dm File

Introduction to Polygons .dm File

Convex and Concave Quadrilaterals .dm File

On convex quadrilateral (Theorem) .dm File

Angles in a Polygon .dm File

Exterior Angles of a Polygon .dm File

Types of Quadrilaterals .dm File

Theorems about parallelograms .dm File

Parallelogram and its Properties .dm File

Property of Angles of a Parallelogram: Illustration .dm File

Property of the Diagonals of a Rhombus .dm File

Understanding Quadrilaterals: Rectangle and Rhombus .dm File

Construction of a Quadrilateral: Given Four Sides and a Diag .dm File

Construction of a Quadrilateral: Given Three Sides and Two d .dm File

Introduction to Graphs .dm File

Reading a Bar Graph .dm File

The classification of qualitative data and quantitative data .dm File

Frequency of Data: Illustration .dm File

Classification of quantitative data and frequency distributi .dm File

Tally Marks .dm File

Introduction to Bar Graph .dm File

Pie Chart .dm File

Reading a pie-chart .dm File

Introduction to Probability .dm File

Squares and Square Roots .dm File

Method of finding square root .dm File

Method of finding square root .dm File

Method of finding square root .dm File

Verification of a perfect square .dm File

Perfect Squares: Illustrations .dm File

Verification of a perfect square (Rules) .dm File

Verification of a Perfect Square (Number ending in 5) .dm File

Verification of a perfect square (Example) .dm File

Perfect Squares and their Square Roots .dm File

Square-root of a fraction .dm File

Finding square root: Example .dm File

Square root of a number upto two decimal places .dm File

Cube and cube roots .dm File

Finding Cube Roots .dm File

Cube roots of rational numbers .dm File

Cube roots of smaller number .dm File

Cube Root of a Number .dm File

Ratio .dm File

Discount and Percentage .dm File

Profit and Loss .dm File

Profit and loss percent .dm File

Profit and loss: Example .dm File

To find sale price .dm File

Example - 6 .dm File

Cost price, sale price, profit and loss .dm File

Simple and Compound Interest .dm File

Compound interest .dm File

Comparison of Simple and Compound Interest .dm File

Compound interest and amount .dm File

Compound interest Example .dm File

Simple interest and compound interest: Illustration .dm File

Algebraic Expressions .dm File

Monomial, Binomial, and Trinomial .dm File

Introduction to Polynomials .dm File

Like and unlike terms .dm File

Addition of polynomials .dm File

Subtraction of polynomials .dm File

Addition and Subtraction of Polynomials .dm File

(a + b)? .dm File

Expansion of (a + b)? .dm File

Expansion of (a - b)? .dm File

Examples of (a + b)? and (a - b)? .dm File

a? - b? .dm File

(a - b)? .dm File

Visualizing Solid Shapes .dm File

Introduction to a Prism .dm File

Introduction to Pyramid .dm File

Pyramids .dm File

Prism .dm File

Area of Trapezium: Illustration .dm File

Surface Area of Rectangular Solids .dm File

Surface Area of a Cylinder .dm File

Surface area of a cylinder: Illustrations .dm File

Surface Area of a Cylinder .dm File

Surface area of a cylinder: Examples .dm File

Surface area of a cylinder: Practical problems .dm File

Volume of a Solid .dm File

Volume of a Cylinder: Introduction .dm File

Practical problems involving volumes of a cylinders (ii) .dm File

Practical problems of volume (godown and tin) .dm File

Practical problems of volume .dm File

Application of Mensuration - Cylinder .dm File

Surface area of a cylinder: Illustrations .dm File

Surface Area of a Cylinder .dm File

Surface area of a cylinder: Examples .dm File

Surface area of a cylinder: Practical problems .dm File

Volume of a Solid .dm File

Volume of a Cylinder: Introduction .dm File

Practical problems involving volumes of a cylinders (ii) .dm File

Practical problems of volume (godown and tin) .dm File

Practical problems of volume .dm File

Application of Mensuration - Cylinder .dm File

Volume .dm File

Index of a number .dm File

Zero and negative integral indices .dm File

Exponent Rule: Law of Division .dm File

Role of exponents: Illustration .dm File

Role of exponents (Example) .dm File

Exponent Rule (Power Rule) .dm File

Exponent Rule: Multiplication and Division .dm File

Law of multiplication .dm File

Proportion .dm File

Direct and Inverse Proportion .dm File

Method of Obtaining a Factor: Example .dm File

Method of Obtaining a Factor: Illustration .dm File

Factors of a Trinomial .dm File

Factorization of Algebraic Expressions .dm File

Difference of two square terms .dm File

Factors of difference of two squares .dm File

Factorization Using Algebraic Identities .dm File

Factors of the difference of two perfect squares (illustrati .dm File

Factorize (Difference of two squares): Examples .dm File

Factorize (Difference of two squares):Illustrations .dm File

Factorize (Difference of two squares): Illustration .dm File

Factorizing Polynomial by writing it as a Difference of Two .dm File

Factorization method: illustration .dm File

Examples of (a + b)? and (a - b)? .dm File

To divide a monomial by a monomial .dm File

To divide a Polynomial by a monomial .dm File

To divide a Polynomial by a Polynomial .dm File

Introduction to Graphs .dm File

Drawing a Bar Graph .dm File

Reading a Bar Graph .dm File

Pie Chart .dm File

Cartesian Coordinate System .dm File

Cost price, sale price, profit and loss .dm File

Simple interest .dm File

Test for Divisibility by 10 .dm File

Test for Divisibility by 3 .dm File

Test for Divisibility by 9 .dm File

Cultivation of crops .dm File

Types of soil .dm File

Fertilizers .dm File

Crop rotation .dm File

Nitrogen fixation .dm File

Manuring,?Weeding and?Irrigation .dm File

Pesticides and weed control .dm File

Importance of plants and animals .dm File

Components of food .dm File

Storage of grains .dm File

Insect?pests of stored grains .dm File

Useful plants and animals .dm File

Algae and diatoms .dm File

Yeast and fungi .dm File

Fungi .dm File

Types of Viruses .dm File

Anaerobic respiration .dm File

Effect of Antibiotics .dm File

Nitrogen fixation .dm File

Nitrogen cycle .dm File

Composter .dm File

Plastic recycling .dm File

Cholera (Cellular damage) .dm File

Chickenpox .dm File

Malaria .dm File

Viral diseases (Influenza and polio) .dm File

Viral diseases (Measles, Mumps, Rabies) .dm File

Bacterial diseases (Typhoid and Cholera) .dm File

Micro-organisms as foes and friends .dm File

Parasitic nutrition in fungus .dm File

Synthetic Fibres .dm File

Properties and Uses of Plastics .dm File

Polythene .dm File

Recycling Waste .dm File

Physical Properties of Metals .dm File

Physical Properties of Non-metals .dm File

Metallic Conductors .dm File

Chemical Properties of Metals .dm File

Metals and Non Metals (Reaction with Oxygen) .dm File

Reaction of Metals with Chlorine .dm File

Corrosion .dm File

Reaction of Metals with Oxygen .dm File

Reaction of Metals with Water .dm File

Reaction of Metals with Acids .dm File

Displacement Reactions .dm File

Uses of Metals and Non Metals .dm File

Simple Oxides of Metals and Non Metals .dm File

Source of Hydrocarbons .dm File

Types of Coal .dm File

Destructive Distillation of Coal .dm File

Destructive Distillation of Wood .dm File

Cracking .dm File

Refining of Petroleum .dm File

Rocket Propellants .dm File

Compressed Natural Gas (CNG) .dm File

Constituents of Petroleum .dm File

Ignition Temperature .dm File

Combustion and its Types .dm File

The Chemistry of Fire .dm File

Flames .dm File

Soot .dm File

Types of Fuels .dm File

Liquid Fuels .dm File

Ideal Fuel .dm File

Calorific Value and Fuel Efficiency .dm File

Impact of Human Activities on Environment .dm File

World biomes-Desert .dm File

Biomes .dm File

Soil erosion .dm File

Control of erosion .dm File

Agents responsible for soil erosion .dm File

Recycling Waste .dm File

Cell and cell theory .dm File

Structure of Onion peel and Cork cells .dm File

Microscope and Cells .dm File

Plant Cell .dm File

The Light Microscope .dm File

Compound Microscope .dm File

Transmission electron microscope .dm File

Scanning electron microscope .dm File

Magnification and Resolution Power .dm File

Number and size of cells .dm File

Cell (shapes and functions) .dm File

Animal cell .dm File

Cell structure II .dm File

Nucleus and lysosomes .dm File

Cell structure (Plant cell) .dm File

Cell structure in plants .dm File

Cell wall and vacuoles .dm File

Comparison of plant and animal cells .dm File

Eukaryotic cell .dm File

Prokaryota and eukaryota .dm File

Cell structure specialization .dm File

Cell and cell theory .dm File

Structure of Onion peel and Cork cells .dm File

Microscope and Cells .dm File

Plant Cell .dm File

The Light Microscope .dm File

Compound Microscope .dm File

Transmission electron microscope .dm File

Scanning electron microscope .dm File

Magnification and Resolution Power .dm File

Number and size of cells .dm File

Cell (shapes and functions) .dm File

Animal cell .dm File

Cell structure II .dm File

Nucleus and lysosomes .dm File

Cell structure (Plant cell) .dm File

Cell structure in plants .dm File

Cell wall and vacuoles .dm File

Comparison of plant and animal cells .dm File

Eukaryotic cell .dm File

Prokaryota and eukaryota .dm File

Cell structure specialization .dm File

Sexual reproduction in animals .dm File

Male reproductive system .dm File

Female reproductive system .dm File

Menstrual cycle in females .dm File

Fertilization .dm File

Types of reproduction (Asexual reproduction) .dm File

Adolescence .dm File

Menstrual cycle in females .dm File

Human sex determination .dm File

Chemical coordination in humans .dm File

Animal hormones I .dm File

Animal hormones II .dm File

Force: A Push or a Pull .dm File

Interacting Forces .dm File

Forces and Motion .dm File

Effects of Force .dm File

Types of Force (Part-1) .dm File

Types of Force (Part-2) .dm File

Balanced Forces .dm File

Electrostatic Force (A Non-contact Force) .dm File

Electrostatic Force and Coulomb's Law .dm File

Uncharged and charged bodies .dm File

Attraction and Repulsion between Magnets .dm File

Electromagnetic Force .dm File

Electromagnet .dm File

Gravitation .dm File

Thrust and Pressure .dm File

Applications of Thrust and Pressure .dm File

Pressure Exerted by Liquids .dm File

Laws of Liquid Pressure .dm File

Atmospheric Pressure (Part-1) .dm File

Atmospheric Pressure (Part-2) .dm File

Force: A Push or a Pull .dm File

Types of Force (Part-1) .dm File

Types of Force (Part-2) .dm File

Spring Balance .dm File

Factors Affecting Friction .dm File

Increasing and Reducing Friction .dm File

Rolling Friction .dm File

Rolling Friction and Sliding Friction .dm File

Fluid Friction .dm File

Sound .dm File

Loud and Soft Sound .dm File

Sound and Hearing .dm File

Propagation of Sound Waves through Different Media .dm File

Characteristics of Sound Wave .dm File

Moving Coil Loudspeaker .dm File

Loudness and Pitch .dm File

Infrasonics and Ultrasonics .dm File

Musical Sound and Noise .dm File

Noise Pollution .dm File

Bulb Connected to a Cell .dm File

Conductors .dm File

Conductors and Insulators .dm File

Water (Conductor or Nonconductor) .dm File

Electric Conductors and Insulators .dm File

Comparing Conductors and Electrolytes .dm File

Daniel Cell .dm File

Light Emitting Diode .dm File

Chemical Effect of an Electric Current .dm File

Applications of Electrolysis (Part-I) .dm File

Electroplating .dm File

Electric Charge .dm File

Nature of Charges .dm File

Charging by Induction .dm File

Electroscope .dm File

Pith Ball Electroscope .dm File

Gold-Leaf Electroscope .dm File

Lightning Conductor .dm File

Earthquake .dm File

Mirror and Reflection .dm File

Reflection of Light .dm File

Reflection of Light and its Laws .dm File

Image Formation in a Plane Mirror .dm File

Periscope .dm File

Two Plane Mirrors Parallel to Each Other .dm File

Kaleidoscope .dm File

Effects of Rotation of a Plane Mirror .dm File

Reflection by Spherical Mirrors .dm File

Transparent, Translucent, and Opaque Objects .dm File

Accommodation of the Eye .dm File

Persistence of Vision .dm File

Dispersion of White Light .dm File

Defects of Vision and their Correction .dm File

Our Universe .dm File

Galaxy .dm File

The Sun in the Sky .dm File

Earth and the Sun .dm File

Day and Night Cycle .dm File

Day and Night .dm File

The Moon .dm File

Phases of the Moon .dm File

Light and Shadow .dm File

Lunar Eclipse .dm File

Solar Eclipse .dm File

Stars in the Sky .dm File

Atmospheric Refraction .dm File

Some important informations about sun .dm File

The Sun (Part-1) .dm File

The Sun (Part-2) .dm File

Motion of Planets around the Sun .dm File

Constellations .dm File

Asteroids, Comets, Meteors and Meteorites .dm File

Solar System (The Inner Planets) .dm File

Solar System (The Outer Planets) .dm File

Artificial Satellites .dm File

Remote Sensing .dm File

Story of the earth .dm File

Structure of the earth .dm File

Temperature of the Earth .dm File

Latitude and Longitude .dm File

Air pollution .dm File

Causes of Air Pollution .dm File

Methods of controlling air pollution .dm File

Catalytic Converter .dm File

Dust and Smoke .dm File

Ozone layer .dm File

Acid Rain .dm File

Green House Gases .dm File

The Global warming .dm File

Compressed Natural Gas (CNG) .dm File

Water pollution .dm File

Water pollution and its effect (Eutrophication) .dm File

Wastewater Treatment .dm File

Potable Water .dm File

Metals and Non Metals (Reaction with Oxygen) APK .apk File

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