Chapter 1: Crop Production and Management

Chapter 2: Microorganisms: Friend and Foe

  • 1: Microorganisms
  • 2: Where do Microorganisms Live?
  • 3: Microorganisms and Us
  • 4: Harmful Microorganisms
  • 5: Food Preservation
  • 6: Nitrogen Fixation
  • 7: Nitrogen cycle

Chapter 3: Synthetic Fibres And Plastics

  • 1:What are Synthetic Fibres?
  • 2: Types of Synthetic Fibres
  • 3: Characteristics of Synthetic Fibres
  • 4: Plastics
  • 5: Plastics as Materials of Choice
  • 6: Plastics and the Environment

Chapter 4: Materials: Metals and Non-Metals

Chapter 5: Coal And Petroleum

  • 1: Coal
  • 2: Petroleum
  • 3:Natural Gas
  • 4:Some Natural Resources are Limited

Chapter 6: Combustion And Flame

  • 1: What is Combustion?
  • 2:How Do We Control Fire?
  • Types of Combustion
  • 4:Flame
  • 5: Structure of a Flame
  • 6:What is a Fuel?
  • 7:Fuel Efficiency

Chapter 7: Conservation of Plants and Animals

  • 1: Deforestation and Its Causes
  • 2: Consequences of Deforestation
  • 3: Conservation of Forest and Wildlife
  • 4: Biosphere Reserve
  • 5: Flora and Fauna
  • 6: Endemic Species
  • 7: Wildlife Sanctuary
  • 8: National Park
  • 9: Red Data Book
  • 10: Migration
  • 11: Recycling of Paper
  • 12: Reforestation

Chapter 8: Cell — Structure and Functions

  • 1: Discovery of the Cell
  • 2: The Cell
  • 3: Organisms show Variety in Cell Number, Shape and Size
  • 4: Cell Structure and Function
  • 5: Parts of the Cell
  • 6: Comparison of Plants and Animals Cells

Chapter 9: Reproduction In Animals

  • 1: Modes of Reproduction
  • 2: Sexual Reproduction
  • 3: Asexual Reproduction

Chapter 10: Reaching The Age Of Adolescence

  • 1: Adolescence and Puberty
  • 2: Changes at Puberty
  • 3: Secondary Sexual Characters
  • 4: Role of Hormones in Initiating Reproductive Function
  • 5: Reproductive Phase of Life in Humans
  • 6: How is the Sex of the Baby Determined?
  • 7: Hormones other than Sex Hormones
  • 8: Role of Hormones in Completing the Life History of Insects and Frogs
  • 9: Reproductive Health

Chapter 11: Force And Pressure

  • 1:Force: A push or a Pull
  • 2:Forces are due to an Interaction
  • 3:Exploring Forces
  • 4:A Force can Change the State of Motion
  • 5:Force can Change the Shape of an object
  • 6:Contact Forces
  • 7:Non-contact Forces
  • 8:Pressure
  • 9:Pressure Exerted by Liquids and Gases
  • 10:Atmospheric Pressure

Chapter 12: Friction

  • 1:Force of  Friction
  • 2:Factors affecting Friction
  • 3:Friction: A Necessary Evil
  • 4:Increasing and Reducing Friction
  • 5:Wheels Reduce Friction
  • 6:Fluid Friction

Chapter 13: Sound

  • 1:Sound is Produced by Vibrating Bodies
  • 2:Sound Produced by Humans
  • 3:Sounds Needs a Medium for Propagation
  • 4:We Hear Sound through Our Ears
  • 5:Aptitude, Time Period and Frequency of a vibration
  • 6:Audible and Inaudible Sounds
  • 7:Noise and Music
  • 8:Noise Pollution

Chapter 14: Chemical Effects Of Electric Current

  • 1: Do Liquids Conduct Electricity?
  • 2: Chemical Effects Of Electric Current
  • 3: Electroplating

Chapter 15: Some Natural Phenomena

  • 1: Lightning
  • 2: Charging by Rubbing
  • 3: Types of Charges and Their Interaction
  • 4: Transfer of Charge
  • 5: The Story of Lightning
  • 6: Lightning Safety
  • 7: Earthquakes

Chapter 16: Light

  • 1: What makes Things Visible
  • 2: Laws of Reflection
  • 3: Regular and Diffused Reflection
  • 4: Reflected Light Can be Reflected Again
  • 5: Multiple Images
  • 6: Sunlight – White or Coloured
  • 7: What is inside Our Eyes?
  • 8: Care of the Eyes
  • 9: Visually Impaired Persons Can Read and Write
  • 10: What is Braille System?

Chapter 17: Stars And The Solar System

  • 1: The Moon
  • 2: The Stars
  • 3: Constellations
  • 4: The Solar System
  • 5: Some Other Members of the Solar System

Chapter 18: Pollution of Air and Water

  • 1: Air Pollution
  • 2: How does Air Get Polluted?
  • 3: Case Study- The Taj Mahal
  • 4:Greenhouse Effect
  • 5:What can be Done?
  • 6: Water Pollution
  • 7:How does Water Get Polluted?
  • 8:What is Potable Water and How is Water Purified?
  • 9:What Can be Done?