Watch Educational Videos for Class Ten

Biology Physics Chemistry Maths

Biology             

Nutrition

The different lessons in this topic explain about nutrition, how food is digested in human. It describes different processes involved in animal nutrition (Ingestion, digestion, absorption, assimilation, egestion) and also describes about different type of plant nutrition. It explains the classification of plants and animals based on nutrition method.
How Plants make food (11:14 min)
Mohl's Half Leaf Experiment (3:33 min)
Where photosynthesis takes place (4:03 min)
Process of photosynthesis (8:03 min)
Human digestive system (9:26 min)
Human digestion overview (3:21 min)
Human nutrition (9:35 min)
Indigestion (3:21 min)
Plant nutrition (7:29 min)
Animal nutrition (6:06 min)
Dodder - The Parasite (2:54 min)

Respiration

The different lessons in this topic explain about respiration - aerobic and anaerobic respiration process and importance of respiration. It describes how human breathe. It also describes how different animals breathe like fish, earthworm, single cell organisms etc and explains how plants exchange gases with the environment.
What is respiration (11:21 min)
Breathing in humans (8:19 min)
Human respiration overview (3:59 min)
Cellular Respiration - Part 1 (4:22 min)
Cellular Respiration - Part 2 (3:24 min)
Respiration vs Combustion(3:00 min)
Breathing in other animals (5:37 min)
Gaseous Exchange in Plants(3:24 min)

Transportation

The different lessons in this topic explain about transport system in living organisms. It explains about blood circulation, properties of arteries and veins, capillaries, substances in blood, how heart functions. It also describes about circulatory system in plant and how it functions.
Blood and transport system (9:52 min)
How heart functions - overview (3:45 min)
How heart functions (9:30 min)
Cardiac Cycle - Part 1 (2:58 min)
Cardiac Cycle - Part 2 (5:14 min)
Single and Double Circulation (2:27 min)
Clotting of blood (2:21 min)
Lymph (4:19 min)
Transport in plants - Part 1 (7:35 min)
Transport in plants - Part 2 (5:47 min)

Excretion

The different lessons in this topic explain about excretion in living organisms. It describes excretory system in human and how it functions. It describes about excretion in other animals. It also explains how plants get rid of harmful substances.
Excretion in Humans - Overview (1:56 min)
Structure of a Kidney (4:38 min)
How Nephron Works (3:21 min)
Composition of Urine and Dialysis process (3:02 min)
Excretion in humans and animals(6:44 min)
Excretory Organs of All Animals (2:47 min)
Plant excretion (3:35 min)
Plant excretion - alkaloids (3:27 min)

Coordination

The lessons in this topic teach about our nervous system and its function in details. It also teaches how hormones relay chemical signals and help in coordination in our body as well as in plants.
Introduction to Nervous System (10:42 min)
Nervous System - Synapses (3:55 min)
Reflex action(4:26 min)
Our Amazing Brain - Part 1 (3:40 min)
Our Amazing Brain - Part 2 (6:39 min)
Peripheral Nervous System - Part 1 (5:26 min)
Peripheral Nervous System - Part 2 (5:07 min)
Coordination in Plants - Part 1 (4:37 min)
Coordination in Plants - Part 2 (3:08 min)
Coordination in humans using hormones(3:50 min)
Coordination in humans using hormones Part 2 (2:24 min)

Reproduction

The lessons in this topic explain about different reproduction method in different organisms (both plants and animals).
Plant - sexual reproduction (6:08 min)
Plant - asexual reproduction (9:45 min)
Animal - Asexual Reproduction (3:35 min)
Animal - Sexual Reproduction (4:51 min)
Human Reproductive System (6:40 min)
How Human Reproductive System Works - Part 1 (5:16 min)
How Human Reproductive System Works - Part 2 (2:19 min)
Variation and Sexual Reproduction (5:02 min)

Heredity

This topic explains what is heredity and how traits are passed to next generation. It discusses about Mendel’s experiment and laws.
Heredity Introduction (4:10 min)
Genes and Heredity (5:35 min)
Law of Segregation (5:24 min)
Law of Independent Assortment (5:16 min)
Sex Chromosomes (4:19 min)
Heredity and Evolution (6:34 min)
Fossils - The Proof of Evolution (3:53 min)
Body Structure - The Proof of Evolution (3:16 min)
Lamarckism (3:47 min)
Darwinism (4:06 min)
How Species Evolved (3:31 min)
Genetic Drift vs Natural Selection (3:31 min)
Human Evolution (3:09 min)

Physics             

Heat

This lessons in this topic explains how substances change state and how temperature changes on applying heat.
Thermal Equilibrium (4:45 min)
Story - The Lost Friendship (8:21 min)
Heat transfer - conduction and convection (6:58 min)
Heat transfer - radiation (6:09 min)
Specific heat - Part 1 (5:22 min)
Specific heat - Part 2 (2:55 min)
Specific heat application (4:36 min)
Temperature of mixture - Part 1 (5:37 min)
Temperature of mixture - Part 2 (4:01 min)
Dew, fog and evaporation (3:00 min)
Evaporation vs boiling (3:46 min)

Reflection of Light by Different Surfaces

The various lessons in this topic explain about reflection by plane mirrors. It also explains reflection of light, laws of reflection etc.
Laws Of Reflection (5:36 min)
Regular And Diffused Reflection (3:35 min)
Properties Of Reflection (2:44 min)
Reflection - Distance Of Object And Image (2:19 min)
Spherical mirror (2:38 min)
How spherical mirror works (4:10 min)
Mirror formula (3:57 min)
Mirror formula application (4:16 min)

Refraction of Light at Plane Surfaces

The lessons in this topic explain refraction of light, refractive index and importance of refraction in real life.
Refraction (3:55 min)
Why refraction occurs (04:25 min)
Laws of Refraction - Part 1 (5:42 min)
Laws of Refraction - Part 2 (4:49 min)
Total internal reflection (3:03 min)
Total internal reflection in real life (3:47 min)
Refractive index of glass (3:17 min)

Refraction of Light at Curved Surfaces

The lessons explain refraction of light through curved surfaces such as lens.
Light through Lens (11:50 min)
Lens and refraction (3:15 min)
Ray diagram(2:10 min)
Image formation - Convex lens (4:45 min)
Image formation - Concave lens (2:00 min)
Lens formula (03:02 min)
Lens - power and magnification (04:09 min)
Lens word problem (03:26 min)

Human Eye and Colourful World

The various lessons in this topic explain how human eye functions,dispersion of light,scattering of light etc.
Human eye (6:16 min)
How human eye eorks (2:53 min)
How eye works - accomodation (3:46 min)
Near and far Point (1:33 min)
The lens in our eye (5:57 min)
Myopia (3:44 min)
Hypermetropia (4:54 min)
Hypermetropia (3:10 min)
Dispersion Light (3:20 min)
Prism (3:07 min)
Prism Refractive index (6:16 min)
Scattering light (3:52 min)

Electric Current

The lessons in this topic explains basics of electricity. It explains concept of current, potential difference, Ohm’s law, concept of resistivity, calculation of power, resistance, commercial unit etc.
Welcome to Electricity Series (1:38 min)
Water Flow Analogy for Electricity (3:55 min)
Electric Current - Part 1 (4:53 min)
Electric Current - Part 2 (5:07 min)
Electric Current - Part 3 (2:14 min)
Potential Difference (5:13 min)
Resistance (5:59 min)
Resistance Word Problems (3:03 min)
Resistivity (5:28 min)
Resistivity Word Problems (4:16 min)
Power(3:24 min)
Power Commercial Unit (5:36 min)
Calculating Power Consumption (3:23 min)
Heating Effect of Electricity (3:50 min)
Resistance System - Part 1 (7:06 min)
Resistance System - Part 2 (6:13 min)
Resistance System - Part 3 (5:00 min)

Electromagnetism

These lessons explain the nature of magnetic field created by electric current carrying conductor. It elaborates Fleming’s Left-Hand Rule, how motor and dynamo works using animation.
Magnetic Effect of Electricity (5:18 min)
Magnetic Field Created by Straight Conductor - Part 1 (2:54 min)
Magnetic Field Created by Straight Conductor - Part 2 (3:10 min)
Magnetic Field Created by Coil - Part 1 (6:37 min)
Magnetic Field Created by Coil - Part 2 (3:00 min)
Current Carrying Conductor in Magnetic Field - Part 1 (4:02 min)
Current Carrying Conductor in Magnetic Field - Part 2 (3:58 min)
Electric Motor - Part 1 (3:53 min)
Electric Motor - Part 2 (6:08 min)
Electromagnetic Induction (4:00 min)
AC Generator - Part 1 (3:52 min)
AC Generator - Part 2 (5:39 min)
DC Generator - Part 1 (3:44 min)
DC Generator - Part 2 (3:54 min)
Domestic Electricity(3:10 min)

Chemistry             

Chemical Reactions and Equations

The lessons in this topic teach about different types of chemical reactions and how to express them through chemical equations.
How to Write Chemical Reactions Correctly (3:33 min)
Balanced Unbalanced Reactions (5:43 min)
Balancing Reactions - Part 1 (2:18 min)
Balancing Reactions - Part 2 (Algebraic Method) (6:09 min)
Combination Reaction(2:31 min)
Decomposition Reaction(2:53 min)
Exothermic and Endothermic Reaction (4:13 min)
Displacement Reaction (3:01 min)
Double Displacement Reaction (3:54 min)
Redox Reaction (4:45 min)

Acid, Bases and Salts

The lessons in this topic teach about different chemical properties of acid, alkali and salts. It also explains pH and importance.
Reaction of Acids, Bases with Metals (4:03 min)
Reaction of Acids with carbonate, bicarbonate (4:27 min)
Reaction of Acids, Bases with oxides (2:42 min)
Acids, Bases in Water (4:50 min)
What is pH (3:44 min)
pH and daily life(3:16 min)
Common Salt Usage (5:15 min)
Crystal Salt (3:01 min)

Structure of Atom

The lessons teach about electromagnetic spectrum and structure of atom. It discusses the quantum mechanical model of atom.
Elecro-magnetic specrtum (5:11 min)
Line spectra (2:20 min)
Quantum model atom (3:33 min)
Quantum numbers Part 1 (3:53 min)
Quantum numbers Part 2 (5:11 min)

Classification of Elements- The Periodic Table

This topic explains about periodic table and its importance.
Triads (5:22 min)
Octaves (3:30 min)
Mendeleev's Table - Part 1 (6:49 min)
Mendeleev's Table - Part 2 (2:20 min)
Modern Periodic Table - Part 1 (7:13 min)
Modern Periodic Table - Part 2 (5:13 min)
Mendeleev's Table vs Modern Periodic Table (2:56 min)

Chemical Bonding

The topic explains about chemical bonds – ionic and covalent bonds.
Octate Rule (6:37 min)
Ionic Bond (4:47 min)
Covalent bond - Part 1 (3:52 min)
Covalent bond - Part 2 (5:15 min)

Principles of Metallurgy

The lessons in this topic explains how metals are extracted from their ores. It describes many important processes in metallurgy.
Introduction to metallurgy (2:50 min)
Extracting Metal from Ore - Part 1 (3:45 min)
Extracting Metal from Ore - Part 2 (3:43 min)
Refining Crude Metal (2:19 min)
Many important processes in Metallurgy (5:25 min)

Carbon and its Compounds

The topic introduces you to Organic Chemistry. Learn about catenation, hydrocarbon and IUPAC nomenclature. Understand the basic of organic compounds.
Carbon Atom - Part 1 (4:36 min)
Carbon Atom - Part 2 (5:37 min)
Hydrocarbon - Part 1 (4:22 min)
Hydrocarbon - Part 2 (4:15 min)
Functional Groups - Part 1 (4:50 min)
Functional Groups - Part 2 (4:54 min)
Homologous Series and Isomer(3:00 min)
Few Carbon Compound Properties - Part 1 (2:17 min)
Few Carbon Compound Properties - Part 2 (2:05 min)
Ethanol (2:29 min)
Ethanoic acid (3:23 min)

Maths             

Real Number

The lessons in this topic teach Euclid's Division lemma and Division algorithm for finding HCF.
Euclid's Division Lemma (5:34 min)
Euclid's Division Algorithm to find HCF (6:03 min)
HCF x LCM = Product of Numbers (5:49 min)
Proving Irrational numbers are really irrational! (3:56 min)
Recurring and nonrecurring Decimals (5:20 min)

Sets

The lessons in this topic teach set theory.
What is Set and How to write it? (8:16 min)
What is Subset (3:43 min)
What is Universal Set (4:44 min)
Union of Sets (5:27 min)
Intersection of Sets (5:20 min)
Subtraction of Sets (3:58 min)

Polynomials

The lessons in this topic teach about graphical representation of zero of different polynomials .
Zero of linear polynomial and its graph (3:52 min)
Zero of quadratic polynomial and its graph (4:37 min)
Zero of cubic polynomial and its graph (3:51 min)
Relation Between Zeroes of Quadratic Polynomial - Part 1 (4:03 min)
Relation Between Zeroes of Quadratic Polynomial - Part 2 (4:38 min)
Relation Between Zeroes of Quadratic Polynomial - Part 3 (5:03 min)
Polynomial Division Part 1 (6:03 min)
Polynomial Division Part 2 (4:43 min)
Factorization by division (6:37 min)

Pair of Linear Equations in Two Variables

These lessons in this topic teach how to solve pair of linear equations using SUBSTITUION, ELIMINATION, CROSS MULTIPLICATION and graph.
Linear equation in two variables (4:02 min)
Linear equation in two variables - substitution method (6:02 min)
Linear equation in two variables - elimination method (6:54 min)
Linear equation in two variables - cross multiplication method (11:24 min)
Linear equation in two variables - Graph Part 1 (6:06 min)
Linear equation in two variables - Graph Part 2 (8:03 min)

Progressions

The lessons in this topic teach about arithmetic and geometric progressions.
What is Arithmetic Progression (5:11 min)
Arithmetic Progression - Sum of terms (9:24 min)

Coordinate Geometry

The lessons in this topic explain how to find area of triangle in Cartesian system and using Heron’s formula. It also discusses about section formula, mid-point coordinate etc for straight line joining two points.
Coordinate geometry – Introduction to graph (5:43 min)
What is cartesian system (1:38 min)
Understanding Cartesian System (5:40 min)
Distance Formula (5:16 min)
Section Formula (4:20 min)
Triangle Area Formula (4:06 min)
Heron's Formula (6:03 min)
Heron's Formula Example Part 1 (4:43 min)
Heron's Formula Example Part 2 (5:52 min)
Heron's Formula Example Part 3 (6:13 min)

Mensuration

The following lessons teach how to find surface area of different 3d shapes.
Surface area of combination of solids - Part 1 (5:28 min)
Surface area of combination of solids - Part 2 (4:22 min)
Surface area of combination of solids - Part 3 (3:57 min)

Trigonometry

The lessons in this topic introduces trigonometric functions (sine, cosine, tangent and their reciprocals) and their usage.
Introducing Trigonometry (1:58 min)
Trigonometry Basics(3:08 min)
Introducing Sine (4:15 min)
Introducing Cosine(4:02 min)
Introducing Tan (3:33 min)
Complementary Angles - Part 1 (5:00 min)
Complementary Angles - Part 2 (3:23 min)
Complementary Angles - Part 3 (4:26 min)
Relation Between Trigonometric Functions (5:00 min)
Value of Trigonometric Ratios - Part 1 (4:25 min)
Value of Trigonometric Ratios - Part 2 (2:55 min)
Value of Trigonometric Ratios - Part 3 (5:54 min)
Value of Trigonometric Ratios - Part 4 (3:37 min)
Value of Trigonometric Ratios - Part 5 (7:44 min)
Trigonometry Problems (4:02 min)

Application of Trigonometry

The lessons in this topic teach about application of trigonometry in measuring height, distance etc.
Application of Trigonometry (5:02 min)

Statistics

The lessons in this topic teach how of find mean, median and mode of grouped data.
Mean of Grouped Data - Direct Method (Direct Method for Grouped data) (6:15 min)
Mean of Grouped data - Assumed Mean Method (6:48 min)
Mean of Grouped data - Assumed Mean Method - Part 2 (6:06 min)
Mean of Grouped data - Step Deviation Method (3:57 min)
Mean of Grouped Data - Word Problems (3:43 min)
Mode of Grouped Data (4:36 min)
Mode of Grouped Data - Word Problems (4:38 min)
Median of Grouped Data - Part 1 (4:33 min)
Median of Grouped Data - Part 2 (5:19 min)

Quadratic Equations

This topic explains properties of Quadratic Equation and how to solve them.
Quadratic Equation intro (3:23 min)
Quadratic Equation Solving – By Factorization (4:13 min)
Quadratic Equation Solving – By Completing Square (6:05 min)
Quadratic Equation Roots - Part 1 (4:18 min)
Quadratic Equation Roots - Part 2 (3:08 min)
Quadratic Equation Roots - Part 3 (4:13 min)

Similar Triangles

The lessons in this topic explain about similarity amongst triangles. It explains the relations between different elements of similar triangles.
Congruent or Similar? (2:45 min)
Similar triangles (3:08 min)
Relation between similar triangles (3:48 min)

Tangents and Secants to a Circle

The lessons in this topic explains properties of tangent and explains many theorems on tangent of circle.
Properties of Tangent (2:36 min)
Properties of tangent (3:33 min)

Probability

The topic explains about probability and sample space.
Experimental Theoritical Probability (6:47 min)
Complementary Event (2:39 min)
Probability in real life (5:02 min)
Probability sample space (4:15 min)
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