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CBSE - Class 08 - Science

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Crop Production and Management

Videos
01 Introduction
02 Agriculture evolve crop
03 Kharif Rabi Crop
04 Soil Preparation Ploughing
05 Ploughing importance
06 Watering Puddling Levelling
07 Tools for soil Preparation
08 Sowing
09 Seed drill
10 Nutrient Management
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Microorganisms Friend And Foe

Videos
01 Introduction
02 Bacteria
03 Fungi
04 Protozoa Algae
05 Diversity in Microbes Viruses
06 Friendly Microbes
07 Microbes in Curdling of milk
08 Microbes in Baking
09 Microbes in Antibiotics
10 Microbes in Vaccination
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Synthetic Fibres and Plastics (Delete)

Videos
01 Natural Fibers
02 Artificial Fibers
03 Synthetic fibers as Polymers
04 Rayon
05 Nylon
06 Polyester
07 Acrylic
08 Advantage of Synthetic Fibers
09 Plastics
10 Plastics and Environment
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Materials Metals and Non Metals (Delete)

Videos
01 Introduction
02 Metals
03 Lustre hardness malleability
04 Ductility heat conductivity melting point
05 Electricity Conductivity Sonorous High density
06 Non Metals
07 Physical Properties of Non Metals
08 Metal reaction with oxygen
09 Non metal reaction with oxygen
10 Reaction with water
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NCERT Solutions, NCERT Exemplars, Revison Notes, Free Videos, CBSE Papers, MCQ Tests & more.

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Coal and Petroleum

Videos
01 Introduction
02 Exhaustible inexhaustible resource
03 Fossil Fuels
04 Coal Formation
05 Coal Mining Methods
06 Coal Processing and Uses of Coal
07 Destructive distillation of Coal
08 Petroleum formation and oil drilling
09 Petroleum refining
10 Natural Gas
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Combustion and Flame

Videos
01 Introduction
02 Fuel
03 Calorific Value of Fuel
04 Criteria for Combustion
05 Heat needed for Combustion
06 Flash point and Auto ignition temperature
07 Fire control using water and carbon dioxide
08 Inflammable substance
09 Types of Combustion
10 Flames
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Conservation of Plants and Animals

Videos
01 Introduction to Biodiversity
02 Deforestation in India
03 Deforestation causes
04 Deforestation Harmful effects
05 In site and Ex Site Conservation
06 Protected Areas in India
07 National Park and Wildlife Sanctuary
08 Biosphere Reserves Flora and Fauna
09 Endemic Species
10 Endangered Animals
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Cell Structure and Functions (Delete)

Videos
01 Introduction
02 Cell Theory
03 Number of cells Unicellular and Multicellular
04 Shapes of Cells
05 Size of Cells
06 Function of Cells
07 Structure of Cells
08 Cell Membrane
09 Cell Wall
10 Nucleus Eukaryotes vs Prokaryotes
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Reproduction in Animals

Videos
01 Introduction
02 Types Sexual and Asexual
03 Binary and multiple fission
04 Budding Fragmentation Regeneration
05 Sexual development Gametes
06 Puberty in males and Females
07 Male Reproductive Organs
08 Male reproductive Glands
09 Sperm Production and Structure
10 Female Reproductive Organs
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Reaching the Age of Adolescence

Videos
01 Phases in Human LIfe
02 Changes During Puberty
03 Increase in Height and Change in Voice
04 Pimples Acnes Maturity
05 Secondary Sex Characters
06 Hormones
07 How Hormones cause changes
08 Menstrual Cycle in Females
09 Sex determination
10 Thyroid Hormones
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Force and Pressure

Videos
01 Introduction
02 Force change state of motion and shape of object
03 Direction of force
04 Balanced and Unbalanced forces
05 Types of Forces Contact force Muscular
06 Contact Force Friction
7 Atmospheric Pressure
08 Pressure
09 Pressure by liquid and gases
10 Questions
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Friction

Videos
01 Introduction
02 Friction Examples
03 Factor affecting friction Nature of surface
04 Factor affecting friction How tightly surface are held
05 Static Friction
06 Kinetic Friction
07 Compare Sliding and Static friction
08 Friction is a necessary evil
09 Increasing and Reducing Friction
10 Rolling Friction Ball bearing
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Sound

Videos
01 Introduction
02 What produces Sound
03 Vibration
04 Musical Instruments
05 Sound by Humans Larynx
06 Medium of Sound Propagation
07 Sound cant travel in Vacuum
08 Sound through Solids and Liquids
09 Sound travel faster in Solids
10 Human Ear
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Chemical Effects of Electric Current

Videos
01 Introduction
02 Current in External Circuits
03 Electric Circuit
04 Good conductors insulators
05 Testers
06 How does bulb glow
07 Liquids conducts electricity
08 Electric Safety
09 Potato Nicholson experiment
10 Electroplating
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Some Natural Phenomena

Videos
01 Introduction
02 Electric Charge
03 Like charge repel unlike attract
04 Static vs current Electricity
05 Charge Transfer
06 Electroscope
07 Charging Discharging Earthing
08 Cause of Lightning
09 Lightning safety
10 Earthquakes
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Light

Videos
01 Introduction
02 Luminous Illuminated
03 Light travel in straight path
04 Reflection of Light
05 Laws of Reflection
06 Plane Mirrors
07 Our image formation in plane mirror
08 Lateral Inversion
09 Sunlight dispersion
10 Eye pupil Iris Cornea
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Pollution of Air and Water (Delete)

Videos
01 Introduction
02 Factors Spoiling environment
03 Air pollution Importance of Air
04 Air pollution harmful effect and causes
05 Air pollution Industrial Emissions
06 Acid Rain
07 Air pollution Automobile
08 Air pollution Control
09 Catalytic converter Automobile
10 Greenhouse effect
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