CBSE 8 Science

01 Crop Production and Management
7 Topics | 8 Quizzes
1.1 Agricultural Practices and Cropping Pattern
1.01 Agricultural Practices and Cropping Pattern
1.2 Preparation of Soil
1.02 Preparation of Soil
1.3 Sowing
1.03 Sowing
1.4 Adding Manure and Fertilisers
1.04 Adding Manure and Fertilisers
1.5 Irrigation
1.05 Irrigation
1.6 Protection from Weeds and Harvesting
1.06 Protection from Weeds and Harvesting
1.7 Storage and Food From Animals
1.07 Storage of Foodgrains and Food From Animals
Chapter 1 Crop Production and Management - Test
02 Microorganisms Friend and Foe
5 Topics | 6 Quizzes
2.1 Microorganisms: Classification and Habitat
2.01 Microorganisms: Classification and Habitat
2.2 Friendly Microorganisms
2.02 Friendly Microorganisms
2.3 Harmful Microorganisms
2.03 Harmful Microorganisms
2.4 Food Preservation and Food Poisoning
2.04 Food Preservation and Food Poisoning
2.5 Nitrogen Fixation and Nitrogen Cycle
2.05 Nitrogen Fixation and Nitrogen Cycle
Chapter 2 Microorganisms Friend and Foe - Test
03 Synthetic Fibres and Plastics
5 Topics | 6 Quizzes
3.1 Synthetic Fibres and their properties
3.01 Synthetic fibres and their properties
3.2 Types of Synthetic Fibres
3.02 Types of Synthetic Fibres
17.01 Plastics
3.03 Plastics
17.02 Useful Properties of Plastics
3.04 Useful Properties of Plastics
17.03 Plastic and the Environment
3.05 Plastic and the Environment
Chapter 3 Synthetic Fibres and Plastics - Test
04 Materials: Metals and Non-Metals
4 Topics | 5 Quizzes
7.01 Physical Properties of Metals and Nonmetals
4.01 Physical Properties of Metals and Nonmetals
7.02 Chemical Properties of Metals and nonmetals: Reaction with Oxygen and Water
4.02 Chemical Properties of Metals and Nonmetals: Reaction with Oxygen and Water
7.03 Chemical Properties of Metals and Nonmetals: Reaction with Acids and Bases, and Displacement Reaction
4.03 Chemical Properties of Metals and Nonmetals: Reaction with Acids and Bases, and Displacement Reaction
7.04 Uses of Metals and Nonmetals
4.04 Uses of Metals and Nonmetals
Chapter 4 Materials: Metals and Nonmetals - Test
05 Coal and Petroleum
5 Topics | 6 Quizzes
5.1 Natural and Manmade Resources
5.01 Natural and Manmade Resources
5.2 Coal
5.02 Coal
5.3 Petroleum
5.03 Petroleum
5.4 Natural Gas
5.04 Natural Gas
5.5 Limitations of Natural Resources
5.05 Limitations of Natural Resources
Chapter 5 Coal and Petroleum - Test
10 Combustion and Flame
5 Topics | 6 Quizzes
10.1 Combustion: Concept and Conditions
6.01 Combustion: Concept and Conditions
10.2 Types of Combustion Reaction, Ignition Temperature and Fire Control
6.02 Types of Combustion Reaction, Ignition Temperature and Fire Control
10.3 Flame
6.03 Flame
10.4 Fuel
6.04 Fuel
10.5 Harmful Effects of Burning Fuels
6.05 Harmful Effects of Burning Fuels
Chapter 6 Combustion and Flame - Test
06 Conservation of Plants and Animals
5 Topics | 6 Quizzes
6.1 Deforestation
7.01 Deforestation
6.2 Flora and Fauna
7.02 Flora and Fauna
6.3 Conservation of Forest and Wildlife: Wildlife Sanctuary and Biosphere Reserve
7.03 Conservation of Forest and Wildlife: Wildlife Sanctuary and Biosphere Reserve
6.4 Conservation of Forest and Wildlife: National Park
7.04 Conservation of Forest and Wildlife: National Park
6.5 Recycling of Paper and Reforestation
7.05 Recycling of Paper and Reforestation
Chapter 7 Conservation of Plants and Animals - Test
11 Cell and Structure and Functions
4 Topics | 5 Quizzes
11.1 Introduction to cell
8.01 Introduction to cell
11.2 Variety in Cell Number, Shape and Size
8.02 Variety in Cell Number, Shape and Size
10.01 Structure, Function and Parts of Cell: Basic Components
8.03 Structure, Function and Parts of Cell: Basic Components
10.02 Structure, Function and Parts of Cell: Other Components and Comparison of Plant and Animal cells
8.04 Structure, Function and Parts of Cell: Other Components and Comparison of Plant and Animal cells
Chapter 8 Cell - Structure and Functions - Test
12 Reproduction in Animals
5 Topics | 6 Quizzes
12.1 Modes of Reproduction
9.01 Modes of Reproduction
12.2 Sexual Reproduction: Reproductive System
9.02 Sexual Reproduction: Reproductive System
12.3 Sexual Reproduction: Fertilization
9.03 Sexual Reproduction: Fertilization
12.4 Development of Embryo
9.04 Development of Embryo
12.5 Asexual Reproduction
9.05 Asexual Reproduction
Chapter 9 Reproduction in Animals - Test
13 Reaching the Age of Adolescence
5 Topics | 6 Quizzes
13.1 Adolescence, Puberty and Reproductive Phase of Life
10.01 Adolescence, Puberty and Reproductive Phase of Life
13.2 Changes at Puberty
10.02 Changes at Puberty
13.3 Role of Hormones in Organisms
10.03 Role of Hormones in Organisms
13.4 Sex Determination
10.04 Sex Determination
13.5 Reproductive Health
10.05 Reproductive Health
Chapter 10 Reaching The Age Of Adolescence - Test
07 Force and Pressure
7 Topics | 8 Quizzes
7.1 Force – A Push or Pull
11.01 Force - A Push or Pull
7.2 Effects of Force on Objects
11.02 Effects of Force on Objects
7.3 Contact Forces
11.03 Contact Forces
7.4 Non-Contact forces
11.04 Non-Contact forces
3.03 Pressure
11.05 Pressure
3.04 Pressure exerted by Liquids
11.06 Pressure exerted by Liquids
3.05 Pressure exerted by Gases and Atmospheric Pressure
11.07 Pressure exerted by Gases and Atmospheric Pressure
Chapter 11 Force and Pressure - Test
08 Friction
4 Topics | 5 Quizzes
8.1 Friction Force and its Dependency
12.01 Friction Force and its Dependency
8.2 Friction: a Necessary Evil
12.02 Friction: a Necessary Evil
8.3 Increasing and Decreasing the Friction
12.03 Increasing And Decreasing The Friction
8.4 Fluid Friction
12.04 Fluid Friction
Chapter 12 Friction - Test
09 Sound
5 Topics | 6 Quizzes
15.01 Sound Production
13.01 Sound Production
15.02 Propagation of Sound
13.02 Propagation of Sound
9.3 Ear
13.03 Structure of Human Ear
9.4 Amplitude, Time Period And Frequency of Vibration
13.04 Amplitude, Time Period And Frequency of Vibration
9.5 Noise and Music
13.05 Noise and Music
Chapter 13 Sound - Test
14 Chemical Effects of Electric Current
4 Topics | 5 Quizzes
14.1 Do Liquids Conduct Electricity?
14.01 Do Liquids Conduct Electricity?
14.2 Chemical Effect of Electric Current
14.02 Chemical Effect of Electric Current
14.3 Electroplating
14.03 Electroplating
14.4 Uses of Electroplating
14.04 Uses of Electroplating
Chapter 14 Chemical Effects of Electric Current - Test
15 Some Natural Phenomena
5 Topics | 6 Quizzes
15.1 Electric Charge: Nature, Types and Transfer
15.01 Electric Charge: Nature, Types and Transfer
15.2 Lightning: What is lightning
15.02 Lightning: What is it?
15.3 Lightning: Safety Measures
15.03 Lightning: Safety Measures
9.01 Earthquakes
15.04 Earthquakes
9.02 Protection against Earthquakes
15.05 Protection against Earthquakes
Chapter 15 Some Natural Phenomena - Test
16 Light
6 Topics | 7 Quizzes
16.1 Light: Laws of Reflection
16.01 Light: Laws of Reflection
16.2 Image formation by Plane Mirror
16.02 Image formation by Plane Mirror
16.3 Multiple Images, Kaleidoscope and Dispersion
16.03 Multiple Images, Kaleidoscope and Dispersion
16.4 Human Eye
16.04 Human Eye
16.5 Care of Eyes
16.05 Care of Eyes
16.6 Can a Visually Challenged Persons Read and Write?
16.06 Can a Visually Challenged Persons Read and Write?
Chapter 16 Light - Test
17 Stars and the Solar System
7 Topics | 8 Quizzes
17.1 The Night Sky and the Moon
17.01 The Night Sky and The Moon
17.2 The Stars
17.02 The Stars
17.3 Constellations
17.03 Constellations
17.4 The Structure of Solar System
17.04 The Structure of Solar System
17.5 Planets in the Solar System
17.05 Planets in the Solar System
17.6 Other Members of Solar System
17.06 Other Members of Solar System
17.7 Artificial Satellites
17.07 Artificial Satellites
Chapter 17 Stars and The Solar System - Test
18 Pollution of Air and Water
9 Topics | 10 Quizzes
8.01 Air Pollution: The pollutants
18.01 Air Pollution - The Pollutants
8.02 Acid Rain
18.02 Acid Rain
8.03 Global Warming and Greenhouse Effect
18.03 The Biogeochemical Cycles - Carbon Cycle and Greenhouse Effect
18.4 The Oxygen cycle and The Ozone Layer
18.04 The Oxygen Cycle and The Ozone Layer
8.04 Ways to Reduce Air Pollution
18.05 Ways to Reduce Air Pollution
8.05 Water Pollution
18.06 Water Pollution
8.06 Sources of Water Pollution
18.07 Sources of Water Pollution
18.8 Pollution of Ganga River: A Case Study
18.08 Pollution of Ganga River: A Case Study
18.9 Purification of water and ways to reduce water pollution
18.09 Purification of water and ways to reduce water pollution
Chapter 18 Pollution of Air and Water - Test
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