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CBSE Class 8 Science

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Chapter 1 : Crop Production And Management

1.1 Agricultural Practices

1.2 Basic Practices Of Crop Production

1.3 Preparation Of Soil

1.4 Sowing

1.5 Adding Manure And Fertilisers

1.6 Irrigation

1.7 Protection From Weeds

1.8 Harvesting

1.9 Storage

1.10food From Animals

Chapter 2 : Microorganisms : Friend And Foe

2.1 Microorganisms

2.2 Where Do Microorganisms Live?

2.3 Microorganisms And Us

2.4 Harmful Microorganisms

2.5 Food Preservation

2.6 Nitrogen Fixation

2.7 Nitrogen Cycle

Chapter 3 :. Synthetic Fibres And Plastics

3.1 What Are Synthetic Fibres?

3.2 Types Of Synthetic Fibres A. Rayon

3.3 Characteristics Of Synthetic Fibres

3.4 Plastics

3.5 Plastics As Materials Of Choice

3.7 Plastics And The Environment

Chapter 4 : Materials : Metals And Non–Metals

4.1 Physical Properties Of Metals And Non – Metals

4.2 Chemical Properties Of Metals And Non – Metals

4.3 Uses Of Metals And Nonmetals

Chapter 5 : Coal And Petroleum

5.1 Coal

5.2 Petroleum

5.3 Natural Gas

5.4 Some Natural Resources Are Limited

Chapter 6 : Combustion And Flame

6.1 What Is Combustion?

6.2 How Do We Control Fire?

6.3 Types Of Combustion

6.4 Flame

6.5 Structure Of A Flame

6.6 What Is A Fuel?

6.7 Fuel Efficiency

Chapter 7 : Conservation Of Plants And Animals

7.1 Deforestation And Its Causes

7.2 Consequences Of Deforestation

7.3 Conservation Of Forest And Wildlife

7.4 Biosphere Reserve

7.5 Flora And Fauna

7.6 Endemic Species

7.7 Wildlife Sanctuary

7.8 National Park

7.9 Red Data Book

7.10 Migration

7.11 Recycling Of Paper

7.12 Reforestation

Chapter 8 : Cell – Structure And Functions

8.1 Discovery Of The Cell

8.2 The Cell

8.3 Organisms Show Variety In Cell Number, Shape And Size

8.4 Cell Structure And Function

8.5 Parts Of The Cell

8.6 Comparison Of Plant And Animal Cells

Chapter 9 : Reproduction In Animals

9.1 Modes Of Reproduction

9.2 Sexual Reproduction

9.3 Asexual Reproduction

Chapter 10 : Reaching The Age Of Adolescence

10.1 Adolescence And Puberty

10.2 Changes At Puberty

10.3 Secondary Sexual Characters

10.4 Role Of Hormones In Initiating Reproductive Function

10.5 Reproductive Phase Of Life In Humans

10.6 How Is The Sex Of The Baby Determined?

10.7 Hormones Other Than Sex Hormones

10.8 Role Of Hormones In Completing The Life History Of Insects And Frogs

10.9 Reproductive Health

Chapter 11 : Force And Pressure

11.1 Force – A Push Or A Pull

11.2 Forces Are Due To An Interaction

11.3 Exploring Forces

11.4 A Force Can Change The State Of Motion

11.5 Force Can Change The Shape Of An Object

11.6 Contact Forces

11.7 Non – Contact Forces

11.8 Pressure

11.9 Pressure Exerted By Liquids And Gases

11.10 Atmospheric Pressure

Chapter 12 : Friction

12.1 Force Of Friction

12.2 Factors Affecting Friction

12.3 Friction : A Necessary Evil

12.4 Increasing And Reducing Friction

12.5 Wheels Reduce Friction

12.6 Fluid Friction

Chapter 13 : Sound

13.1 Sound Is Produced By A Vibrating Body

13.2 Sound Produced By Humans

13.3 Sound Needs A Medium For Propagation

13.4 We Hear Sound Through Our Ears

13.5 Amplitude, Time Period And Frequency Of A Vibration

13.6 Audible And Inaudible Sounds

13.7 Noise And Music

13.8 Noise Pollution

Chapter 14 : Chemical Effects Of Electric Current

14.1 Do Liquids Conduct Electricity?

14.2 Chemical Effects Of Electric Current

14.3 Electroplating

Chapter 15 : Some Natural Phenomena

15.1 Lightning

15.2 Charging By Rubbing

15.3 Types Of Charges And Their Interaction

15.4 transfer Of Charge

15.5 The Story Of Lightning

15.6 Lightning Safety

15.7 Earthquakes

Chapter 16 : Light

16.1 What Makes Things Visible

16.2 Laws Of Reflection

16.3 Regular And Diffused Reflection

16.4 Reflected Light Can Be Reflected Again

16.5 Multiple Images

16.6 Sunlight – White Or Coloured

16.7 What Is Inside Our Eyes?

16.8 Care Of Eyes

16.9 Visually Challenged Persons Can Read And Write

16.10 What Is A Braille System?

Chapter 17 : Stars And The Solar System

17.1 The Moon

17.2 The Stars

17.3 Constellations

17.4 The Solar System

17.5 Some Other Members Of The Solar System

Chapter 18 : Pollution Of Air And Water

18.1 Air Pollution

18.2 How Does Air Get Polluted?

18.3 Case Study : The Taj Mahal

18.4 Greenhouse Effect

18.5 What Can Be Done?

18.6 Water Pollution

18.7 How Does Water Get Polluted?

18.8 What Is Potable Water And How Is Water Purified ?

18.9 What Can Be Done?


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