1. Crop Production And Management

• Agricultural Practices
• Basic Practices of Crop Production
• Preparation of Soil
• Sowing
• Adding Manure and Fertilizers
• Irrigation
• Protection from Weeds
• Harvesting
• Storage
• Food from Animals

2. Micro-organisms: Friends And Foe

• Microorganisms
• Where do Microorganisms Live?
• Microorganisms and Us
• Harmful Microorganisms
• Food Preservation
• Nitrogen Fixation
• Nitrogen cycle

3. Synthetic Fibres And Plastics

• What are Synthetic Fibres?
• Types of Synthetic Fibres Rayon
• Characteristics of Synthetic Fibres
• Plastics
• Plastics as Materials of Choice
• Plastics and the Environment

4. Materials: Metals And Non-Metals

• Physical Properties of Metals and Non-metals
• Chemical Properties of Metals and Non-metals
• Uses of Metals and Non-metals

5. Coal And Petroleum

• Coal
• Petroleum
• Natural Gas
• Some Natural Resources are Limited

6. Combustion And Flame

• What is Combustion?
• How Do We Control Fire?
• Types of Combustion
• Flame
• Structure of a Flame
• What is a Fuel?
• Fuel Efficiency

6. Conservation Of Plants And Animals

• Deforestation and Its Causes
• Consequences of Deforestation
• Conservation of Forest and Wildlife
• Biosphere Reserve
• Flora and Fauna
• Endemic Species
• Wildlife Sanctuary
• National Park
• Red Data Book
• Migration
• Recycling of Paper
• Reforestation

7. Cell — Structure And Functions

• Discovery of the Cell
• The Cell
• Organisms show Variety in Cell Number, Shape and Size
• Cell Structure and Function
• Parts of the Cell Membrane
• Comparison of Plant and Animal Cells

8. Reproduction In Animals

• Modes of Reproduction
• Sexual Reproduction
• Asexual Reproduction

9. Reaching The Age Of Adolescence

• Adolescence and Puberty
• Changes at Puberty Increase in Height
• Secondary Sexual Characters
• Role of Hormones in Initiating Reproductive Function
• Reproductive Phase of Life in Humans
• How is the Sex of the Baby Determined?
• Hormones other than Sex Hormones
• Role of Hormones in Completing the Life History of Insects and Frogs
• Reproductive Health

10. Force And Pressure 

• Force – A Push or a Pull
• Forces are due to an Interaction
• Exploring Forces
• A Force can Change the State of Motion
• Force can Change the Shape of an Object
• Contact Forces Muscular Force
• Non-contact Forces
• Pressure
• Pressure Exerted by Liquids and Gases
• Atmospheric Pressure

11. Friction

• Force of Friction
• Factors affecting Friction
• Friction: A Necessary Evil
• Increasing and Reducing Friction
• Wheels Reduce Friction
• Fluid Friction

12. Sound

• Sound is Produced by a Vibrating Body
• Sound Produced by Humans
• Sound Needs a Medium for Propagation
• We Hear Sound through Our Ears
• Amplitude, Time Period and Frequency of a Vibration
• Audible and Inaudible Sounds
• Noise and Music
• Noise Pollution

13. Chemical Effects Of Electric Current

• Do Liquids Conduct Electricity?
• Chemical Effects of Electric Current
• Electroplating

14. Some Natural Phenomena

• Lightning
• Charging by Rubbing
• Types of Charges and Their Interaction
• Transfer of Charge
• The Story of Lightning
• Lightning Safety
• Earthquakes

15. Light

• What makes Things Visible
• Laws of Reflection
• Regular and Diffused Reflection
• Reflected Light Can be Reflected Again
• Multiple Images
• Sunlight — White or Coloured
• What is inside Our Eyes?
• Care of the Eyes
• Visually Impaired Persons Can Read and Write
• What is the Braille System?

16. Stars And The Solar System

• The Moon
• The Stars
• Constellations
• The Solar System
• Some Other Members of the Solar System

17. Pollution Of Air And Water

• Air Pollution
• How does Air Get Polluted?
• Case Study— The Taj Mahal
• Greenhouse Effect
• What can be done?
• Water Pollution
• How does Water Get Polluted?
• What is Potable Water and How is Water Purified?
• What Can be Done?