# Math and Science Class 8 CBSE Online Course

## Description

**Math and Science Class 8 CBSE Online Course**

Math is a subject that studies numbers, quantities, and space. Science gives the logic behind anything and everything around us. This is a combo course providing the two subjects- Math and Science for Grade 8 CBSE which is strictly aligned to the latest NCERT Syllabus.

The course has a series of explanatory videos where a concept is explained in a way that will help you relate and understand the concepts. Each video is followed by a quiz which will help you test your knowledge. To make it a complete package, there are assessment tools on various topics.

These course topics are arranged chapter-wise completing the entire syllabus for Grade 8 Math and Science.

What will you learn in this course:

This course covers all 16 chapters of class 8th Mathematics and 18 chapters of Science mapped according to the latest NCERT syllabus.

#### Who is this Course for:

This course is created specifically for class 8 CBSE students. However, it can be taken by students of any board or grade if the course content matches their need.

This course can be taken by teachers who wish to provide a better learning tool for students.

#### Requirements:

Basic understanding of the subjects of Math and Science

Basic arithmetic and calculation skills

A curiosity to learn the subjects

If You Have Any Queries you can Call / Whatsapp Us on +917506363600 Or Mail us on Info@letstute.co.in

**Read more**

## Lessons

- lessons
- 14 hr 8mins

- Real Numbers

- Natural and Whole Numbers (Review)
- What are Integers?
- What are Rational Numbers?
- Fractions and Integers - Are they Rational Numbers?
- What are Positive and Negative Rational Numbers?
- What is the Closure property of Rational Numbers?
- What is the Commutative Property of Rational Numbers?
- What is the Associative Property of Rational Numbers?
- What are Additive and Multiplicative identities?
- What is the Zero Property?
- What are the Other Properties of Rational Numbers?
- How do we Add Two Rational Numbers? Part 1
- How do we Add Two Rational Numbers? Part 2
- How do we Subtract Two Rational Numbers?
- How do we Multiply Two Rational Numbers? Part 1
- How do we Multiply Two Rational Numbers? Part 2
- How do we Divide Two Rational Numbers? Part 1
- How do we Divide Two Rational Numbers? Part 2
- Rational Numbers on a Number Line - Part 1
- Rational Numbers on a Number Line - Part 2
- Rational Numbers on a Number Line - Part 3
- How many Rational Numbers exist between Two Rational Numbers?
- How many Rational Numbers exist between Two Rational Numbers? (Logic)
- How many Rational Numbers exist between Two Rational Numbers? (Finding Averages)
- How do we Find Rational Numbers between Two Rational Numbers? (Examples Part 1)
- How do we Find Rational Numbers between Two Rational Numbers? (Examples Part 2)
- Linear Equations One Variable

- What is a Linear Equation in One Variable?
- How do we Use the Inverse Method to Solve a Linear Equation?
- How do we Use the Transpose Method to Solve a Linear Equation?
- Forming Equations - Find the Parts
- Forming Equations - Find the Number
- Forming Equations - Find the Length and Breadth of a Rectangle
- Forming Equations - Inheritance
- Forming Equations - Consecutive Integers
- Forming Equations - Consecutive Even Integers
- Forming Equations - Find the Digits; and then the Number
- Forming Equations - Find the Present Age
- Forming Equations - Find the Present Age (Table Method)
- Forming Equations - Find the Fraction
- Forming Equations - Find the Number of Coins
- Understanding Quadrilaterals

- What is a Quadrilateral?
- What are the Different Pairs of Sides and Angles in a Quadrilateral?
- What is a Polygon?
- What is a Regular Polygon?
- What are Trapeziums and Kites?
- What is a Parallelogram and what are its Special Cases?
- The Quadrilaterals Tree
- What is the Relation of an Exterior Angle of a Triangle with its Interior Angles?
- Exterior Angles of a Triangle - Example
- What are the Different Properties of Quadrilaterals we will look at?
- How do we Prove that the Diagonals of an Isosceles Trapezium are Equal?
- How do we Prove that the Diagonals of a Kite are Perpendicular to each other?
- How do we Prove that the Opposite Sides of a Parallelogram are Equal?
- How do we Prove that the Opposite Angles of a Parallelogram are Equal?
- How do we Prove that the Diagonals of a Parallelogram Bisect each other?
- How do we Prove that the Diagonals of a Rectangle are Equal?
- How do we Prove that the Diagonals of a Rhombus Bisect each other are Right Angles?
- A Summary of the Properties of a few Special Quadrilaterals
- Properties of a Rhombus - Example
- Practical Geometry - Introduction
- Constructing a Quadrilateral – With lengths of 3 sides and 2 diagonals
- Constructing a Quadrilateral – With lengths of 4 sides and the diagonal
- Constructing a Quadrilateral – With lengths of 3 sides and 2 included angles
- Constructing a Quadrilateral – With lengths of 2 adjacent sides and 3 angles
- Constructing Quadrilaterals – Special Cases
- Practical Geometry

- Practical Geometry - Introduction
- Constructing a Quadrilateral – With lengths of 4 sides and the diagonal
- Constructing a Quadrilateral – With lengths of 3 sides and 2 diagonals
- Constructing a Quadrilateral – With lengths of 3 sides and 2 included angles
- Constructing a Quadrilateral – With lengths of 2 adjacent sides and 3 angles
- Constructing Quadrilaterals – Special Cases
- Data Handling

- What are Bar graphs?
- Bar Graph - Example
- How do we Draw a Bar Graph? Example 1
- How do we Draw a Bar Graph? Example 2
- What are Joint Bar Graphs?
- How do we Draw a Joint Bar Graph?
- What is a Percentage Bar Diagram?
- How do we Draw a Percentage Bar Diagram?
- Percentage Bar Diagram - Example
- How do we Classify Data?
- What are Tally Marks?
- What is Ungrouped Frequency Distribution?
- What is Grouped Frequency Distribution? Part 1
- What is Grouped Frequency Distribution? Part 2
- How do we form Class Intervals?
- What is the Continuous Form of Grouping?
- What are Pie Charts?
- How do we Interpret a Pie Chart?
- How do we Construct a Pie Chart? Part 1
- How do we Construct a Pie Chart? Part 2
- What is a Histogram?
- How do we draw Histograms for Discontinuous Class Intervals?
- What is Probability?
- What are Equally Likely Events? (Tossing a Coin)
- What are Equally Likely Events? (Throwing a die)
- When are two Events Not Equally Likely? What are Impossible and Certain Events?
- Squares and Square roots

- What is the Square of a Number?
- Pythagorean triplets
- What are Square Roots?
- How do we Find the Square Root of a Number using the Prime Factorisation Method? Part 1
- How do we Find the Square Root of a Number using the Prime Factorisation Method? Part 2
- How do we Find the Square Root of a Number using the Long Division Method? Part 1
- How do we Find the Square Root of a Number using the Long Division Method? Part 2
- How do we Find the Square Root of a Number using the Long Division Method? Part 3
- How do we Find the Square Root of a Number using the Long Division Method? Part 4
- Cubes and Cube roots

- What is the Cube of a Number?
- What is the Cube Root of a Number?
- How do we Find the Cube Root of a Large Number? (in a few seconds)
- How do we Find the Cube Root of a Number using the Prime Factorisation Method?
- Comparing Quantities

- What is a Ratio?
- What is Percentage?
- Percentage - Example
- Percentage of a Quantity - Example 1
- Percentage Increase or Decrease - Example 2
- What do we mean by Discount?
- How do we Find a Percentage of a Given Quantity?
- What do we mean by Profit and Loss?
- What do we mean by Cost Price and Selling Price?
- What are Overhead Costs?
- What do we mean by Profit Percentage and Loss Percentage?
- Example - How do we find the Cost Price when we are given the Loss Percentage?
- What do we mean by Sales Tax?
- Simple Interest - Basics
- Simple Interest v/s Compound Interest
- What is Half Yearly Compounding?
- What is Quarterly Compounding?
- How do we Derive the Compound Interest formula?
- Compound Interest Example
- Algebraic Expressions and Identities

- What is an Equation?
- What are Terms?
- How do we Count the Number of Terms in an Algebraic Expression?
- What are Like and Unlike Terms?
- When can Terms be Added or Subtracted?
- Heard of the Polynomial Store?
- What is Factorisation of Polynomials?
- How do we Add Two Polynomials?
- How do we Subtract One Polynomial from Another?
- How do we Add Two Polynomials using the COLUMN method? Part 1
- How do we Add Two Polynomials using the COLUMN method? Part 2
- How do we Subtract a Polynomial from Another using the COLUMN method? Part 1
- How do we Subtract a Polynomial from Another using the COLUMN method? Part 2
- How do we Multiply Two Monomials?
- How do we Multiply a Monomial with a Binomial?
- How do we Multiply Two Polynomials?
- What is an Identity?
- First Identity (Square of a Binomial)
- How do we Prove the First Identity?
- Second Identity (Square of a Binomial)
- How do we Prove the Second Identity?
- Third Identity (Difference of Squares)
- How do we Prove the Third Identity?
- Visualising Solid Shapes

- What is a Cuboid?
- What is a Cube?
- Cylinder and Sphere
- What is a Cone?
- What is a Prism?
- What is a Pyramid?
- Viewing 3 Dimensional Shapes
- Mensuration

- What is the Perimeter of a Rectangle?
- What is the Perimeter of a Square and a Triangle?
- What is the Area of a Square and a Rectangle?
- What is the Perimeter of a Parallelogram?
- What is the Circumference of a Circle?
- How do we Find the Area of an Irregular Figure?
- Area of a Rectangle - Example
- What is the Area of a Parallelogram?
- Area of a Parallelogram - Example
- What is the Area of a Triangle?
- What is the Area of a Circle? Part 1
- What is the Area of a Circle? Part 1
- How do we Find the Area of a Trapezium?
- Paths in a Park - Example
- What do we mean by Volume and Surface Area?
- What is the Surface Area of a Cuboid?
- What is the Surface Area of a Cube?
- What is the Volume of a Cuboid? Part 1
- What is the Volume of a Cuboid? Part 2
- Volume of a Cuboid - Example
- Surface Area of a Cuboid - Example
- What is a Cylinder?
- What is the Surface Area of a Cylinder?
- What is the Volume of a Cylinder?
- What is the Volume of a Pizza?
- Volume of a Cylinder - Example
- A Cylinder within a Cylinder - Example
- Exponents and Powers

- What are Exponents?
- What are Negative Exponents?
- What is the Product Law of Exponents?
- What is the Quotient Law of Exponents?
- What is the Power Law of Exponents?
- What are the Power of Product and the Power of Quotient Property?
- Powers of 10 - Part 1
- Powers of 10 - Part 2
- Powers of 10 - Part 3
- Direct and Inverse Proportion

- What is Proportion?
- What is Direct Variation? Part 1
- What is Direct Variation? Part 2
- Direct Variation - Example
- What is Indirect Variation? Part 1
- What is Indirect Variation? Part 2
- Factorisation

- What are Factors?
- What is Factorisation of Polynomials?
- How do we Factorise Polynomials using Grouping? Part 1
- How do we Factorise Polynomials using Grouping? Part 2
- How do we Factorise Polynomials using Identities? Part 1
- How do we Factorise Polynomials using Identities? Part 2
- How do we Factorise Polynomials using Identities? Part 3
- How do we Factorise a Quadratic Polynomial? Part 1
- How do we Factorise a Quadratic Polynomial? Part 2
- How do we Factorise a Quadratic Polynomial? Part 3
- How do we Factorise a Quadratic Polynomial? Part 4
- How do we Factorise a Quadratic Polynomial? Part 5
- How do we Divide One Monomial by Another?
- How do we Divide a Polynomial by a Monomial?
- How do we Divide a Polynomial by a Monomial? Part 1
- How do we Divide a Polynomial by a Monomial? Part 2
- How do we Divide a Polynomial by a Binomial?
- Introduction to Graphs

- What are Bar graphs?
- Bar Graph - Example
- How do we Draw a Bar Graph? Example 1
- How do we Draw a Bar Graph? Example 2
- What are Joint Bar Graphs?
- How do we Draw a Joint Bar Graph?
- What are Pie Charts?
- How do we Interpret a Pie Chart?
- How do we Construct a Pie Chart? Part 1
- How do we Construct a Pie Chart? Part 2
- What is a Histogram?
- How do we draw Histograms for Discontinuous Class Intervals?
- What is a Frequency Polygon?
- How do we Draw a Frequency Polygon using a Histogram?
- How do we Draw a Frequency Polygon without using a Histogram?
- Playing with Numbers

- Divisibility Rules (2; 4 and 8)
- Divisibility Rules (5 and 10)
- Divisibility Rules (3; 6 and 9)
- Divisibility Rules (11)

- Crop Production and Management

- Agriculture - Introduction
- Agricultural Practices (Preparation of Soil)
- Agricultural Implements
- Agricultural Practices (Sowing)
- Agricultural Practices (Adding Manure and Fertilisers)
- Irrigation and Traditional Methods of Irrigation
- Modern Methods of Irrigation
- Weeds and Protection against them, Harvesting
- Storage and Introduction to Animal Husbandry
- Microbes

- Bacteria - Introduction
- Fungus -Introduction
- Protozoa - Introduction
- Algae - Introduction
- Microbial Habitat
- Micro-organisms and Us
- Harmful Microbes for Humans
- Harmful Microbes in Animals and Plants
- Food Poisoning and Food Preservation (Chemical methods)
- Food Preservation (Physical methods)
- Nitrogen Fixation and Nitrogen Cycle
- Bacteria - Introduction
- Fungus -Introduction
- Protozoa - Introduction
- Algae - Introduction
- Microbial Habitat
- Micro-organisms and Us
- Harmful Microbes for Humans
- Harmful Microbes in Animals and Plants
- Food Poisoning and Food Preservation (Chemical methods)
- Food Preservation (Physical methods)
- Nitrogen Fixation and Nitrogen Cycle
- Synthetic Fibres and Plastics

- Synthetic Fibres - Introduction
- Types of Synthetic Fibres - Rayon
- Types of Synthetic Fibres - Nylon
- Types of Synthetic Fibres - Polyester and Acrylic
- Characteristics of Synthetic Fibres
- Plastics
- Properties of Plastics - Part 1
- Properties of Plastics - Part 2
- Properties of Plastics - Part 3
- Effects of Plastic on the Environment
- Metals and Non-Metals

- Metals and Nonmetals - Physical Properties Part 1
- Metals and Nonmetals - Physical Properties Part 2
- Metals and Nonmetals - Chemical Properties Part 1
- Metals and Nonmetals - Chemical Properties Part 2
- Metals and Nonmetals - Chemical Properties Part 3
- Metals and Nonmetals - Chemical Properties Part 4
- Metals and Nonmetals - Chemical Properties Part 5
- Uses of Metals and Nonmetals
- Coal and Petroleum

- Types of Resources
- Types of Coal and Products
- Formation of Petroleum
- Refining Petroleum and Natural Gas
- Combustion and Flames

- What is Combustion?
- Fire Control
- Types of Combustion
- Flames and their Structure
- Concept of Fuel and Fuel Efficiency
- Effects of Burning Fuel
- Conservation of Plants and Animals

- Conservation of Plants and Animals - Introduction
- Biosphere, Biodiversity and Protected Areas - Introduction
- National Park, Wildlife Sanctuary and Biosphere Reserves
- Biosphere Reserves
- Recycling of paper and Reforestation
- The Cell

- The Cell- Introduction
- Discovery of the Cell
- Structure and Components of a Cell - Introduction
- Structure and Components of a Cell – Detailed Study
- Plant Cell v/s Animal Cell
- Prokaryotic and Eukaryotic Cells - Introduction
- Movement across the Plasma Membrane- Diffusion and Osmosis
- Osmosis and Diffusion in Cell
- Cell Organelles - Nucleus
- Cell Organelles - Endoplasmic Reticulum
- Cell Organelles - Golgi Apparatus
- The Cell Organelle- Lysosomes and Mitochondria
- The Cell Organelle- Plastids and Vacuoles
- Reproduction in animals

- Introduction to Reproduction
- Asexual Reproduction
- Male Reproductive System
- Female Reproductive System
- Fertilization Process
- Development of Embryo
- Metamorphosis
- Adolescence

- Introduction to Adolescence and Puberty
- Changes during Puberty Part 1
- Changes during Puberty Part 2
- Secondary Sexual Characters
- Role of Hormones in Reproductive Function
- Hormones other than Sex Hormones
- Hormones in Animals
- Reproductive Phase
- Sex Determination
- Reproductive Health and Good Habits
- Force and Pressure

- What is a Force?
- Contact Forces Part 1
- Contact Forces Part 2
- Non-Contact Forces Part 1
- Non-Contact Forces Part 2
- Magnitude and Direction of Force
- Forces acting in Same and Opposite Directions
- Force Results in Change in State of Motion and or Direction
- Force may Change the Shape of an Object
- What is Pressure?
- Pressure Exerted by Liquids
- Atmospheric Pressure
- Friction

- What is Friction?
- Factors affecting Friction
- Friction – A necessary evil
- Increasing or Reducing Friction
- Wheels reduce friction (Rolling Friction)
- Static Friction
- Fluid Friction
- Sound

- Introduction to Sound
- Vibrating Bodies produce Sound
- Medium of Propagation of Sound
- Noise and Noise Pollution
- Amplitude, Frequency and Time Period of Vibration
- How humans Produce and Hear Sound
- Chemical Effects of Electric Current

- Introduction to Electric Current and Conductors
- Liquids Conducting Electric Current
- Chemical Effects of Currents on Liquids
- Electroplating
- Some Natural Phenomena

- Lightning - Introduction
- Types of Charges
- Transfer of Charges
- More about Lightning
- Safety Measures during Lightning
- Earthquake - Introduction
- Safety Measures during Earthquakes
- Light - Reflection and Refraction

- Introduction to Light
- Laws of Reflection of Light
- Laws of Reflection of Light (Experiment)
- Regular and Diffused Reflection
- Regular and Diffused Reflection (Applications)
- Multiple Reflections - Part 1
- Multiple Reflections - Part 2
- Human Eye - Structure
- Blind Spot of the Eye
- Braille System
- Braille System
- Taking Care of Eyes
- Solar System

- The Moon
- The Stars
- Constellations
- The Solar System
- Types of Planets
- Other Members of the Solar System
- Pollution of Air and Water

- Introduction to Pollution
- Effects of Air Pollution
- Greenhouse Effect
- Introduction to Water Pollution
- Potable Water and Ways to Prevent Water Pollution

- Crop production and management
- Microbes
- Synthetic fibres and plastics
- Force and Pressure
- Friction
- Sound
- Chemical Effects of Electric Current
- Some Natural Phenomena
- Light reflection and refraction
- Solar System
- Pollution of Air and Water

- Real Numbers
- Linear Equation in one variable
- Understanding Quadrilateral
- Practical Geometry
- Data Hnadling
- Squares and Square roots
- Cubes and cube roots
- Comparing Quantities
- Algebraic Expression and Identities
- Visualising Solid shapes
- Mensuration
- Exponents and powers
- Direct and Inverse Proportions
- Factorisations
- Introduction to graphs