General Science | Class 4

Select a chapter above and press 'Show Content'. Click a video topic below to view.

    Chapter 1 Characteristics and Life Process of Organisms ( 29 videos)  (Practice Test)

      1.1: Characteristics of Living Things (Practice Test)
      Characteristics of Living Things
    1. Characteristics of Living Things
      2. Living and Non-Living Things
    2. Living and Non-Living Things
      3. Kingdom Plantae and Kingdom Animalia
    3. Kingdom Plantae and Kingdom Animalia
      1.2: Classification of Animals (Practice Test)
      Kingdom Plantae and Kingdom Animalia
    1. Kingdom Plantae and Kingdom Animalia
      2. Vertebrates
    2. Vertebrates
      3. Invertebrates
    3. Invertebrates
      1.3: Classification of Plants (Practice Test)
      Vertebrates
    1. Vertebrates
      2. Flowering Plants
    2. Flowering Plants
      3. Invertebrates
    3. Invertebrates
      4. Non-flowering Plants
    4. Non-flowering Plants
      5. Diversity In Life and Ways To Protect Diversity
    5. Diversity In Life and Ways To Protect Diversity
      1.4: Major Body Parts And Their Functions (Practice Test)
      Flowering Plants
    1. Flowering Plants
      2. Teeth
    2. Teeth
      3. Non-flowering Plants
    3. Non-flowering Plants
      4. Bones
    4. Bones
      5. Diversity In Life and Ways To Protect Diversity
    5. Diversity In Life and Ways To Protect Diversity
      6. Stomach And Skin
    6. Stomach And Skin
      7. Factors Caused by Humans Affecting Biodiversity
    7. Factors Caused by Humans Affecting Biodiversity
      8. Major Parts of Body (Lung, Heart) and Their Functions
    8. Major Parts of Body (Lung, Heart) and Their Functions
      9. Movement of Our Body by Muscles
    9. Movement of Our Body by Muscles
      1.5: Parts of Plants And Their Functions (Practice Test)
      Teeth
    1. Teeth
      2. Parts of a Plant
    2. Parts of a Plant
      3. Bones
    3. Bones
      4. Parts of a Plants
    4. Parts of a Plants
      5. Major Parts of Body (Lung, Heart) and Their Functions
    5. Major Parts of Body (Lung, Heart) and Their Functions
      6. Stomach And Skin
    6. Stomach And Skin
      7. Movement of Our Body by Muscles
    7. Movement of Our Body by Muscles
      1.6: Parts of Plants and Their Functions (Practice Test)
      Parts of a Plant
    1. Parts of a Plant
      2. Parts of a Plants
    2. Parts of a Plants

    Chapter 2 Ecosystem ( 19 videos)  (Practice Test)

      2.1: Ecosystem
      Ecosystem and its Types
    1. Ecosystem and its Types
      2.2: Components of Ecosystem (Practice Test)
      The Living and Non-living Components of Environment
    1. The Living and Non-living Components of Environment
      2. Role of Biotic and Abiotic Components in an Ecosystem
    2. Role of Biotic and Abiotic Components in an Ecosystem
      3. Ecosystem and its Types
    3. Ecosystem and its Types
      4. Food Chain
    4. Food Chain
      5. Common Predators and Their Prey
    5. Common Predators and Their Prey
      6. Living Things Compete with Each Other for Food And Space
    6. Living Things Compete with Each Other for Food And Space
      7. Value of a Balanced Ecosystem
    7. Value of a Balanced Ecosystem
      8. Factors Affecting Food Chains in an Ecosystem
    8. Factors Affecting Food Chains in an Ecosystem
      2.3: Balanced Ecosystem (Practice Test)
      The Living and Non-living Components of Environment
    1. The Living and Non-living Components of Environment
      2. Importance of Maintaining Balance Within an Ecosystem
    2. Importance of Maintaining Balance Within an Ecosystem
      3. Value of a Balanced Ecosystem
    3. Value of a Balanced Ecosystem
      2.4: Food Chain
      Food Chain
    1. Food Chain
      2.5: Predator-Prey Relationship
      Common Predators and Their Prey
    1. Common Predators and Their Prey
      2.6: Competition among Organisms
      Living Things Compete with Each Other for Food And Space
    1. Living Things Compete with Each Other for Food And Space
      2.7: Impacts of Human Actions on Food Chain in an Ecosystem
      Factors Affecting Food Chains in an Ecosystem
    1. Factors Affecting Food Chains in an Ecosystem
      2.8: Role of Humans to Save the Ecosystem (Practice Test)
      Factors Caused by Humans Affecting Biodiversity
    1. Factors Caused by Humans Affecting Biodiversity
      2. Conservation of Environment
    2. Conservation of Environment
      3. Diversity In Life and Ways To Protect Diversity
    3. Diversity In Life and Ways To Protect Diversity

    Chapter 3 Human Health ( 22 videos)  (Practice Test)

      3.1: Symptoms, Transmission, and Prevention of Communicable Diseases (Practice Test)
      Ways of Cleanliness
    1. Ways of Cleanliness
      2. Difference Between Contagious and Non-contagious Diseases
    2. Difference Between Contagious and Non-contagious Diseases
      3. Symptoms and Transmission of Infections
    3. Symptoms and Transmission of Infections
      4. Symptoms and Transmission of Infections
    4. Symptoms and Transmission of Infections
      5. Symptoms and Transmission of Infections
    5. Symptoms and Transmission of Infections
      3.2: Prevention of Contagious Diseases (Practice Test)
      Difference Between Contagious and Non-contagious Diseases
    1. Difference Between Contagious and Non-contagious Diseases
      2. Ways to Avoid Infections
    2. Ways to Avoid Infections
      3. Antibiotics and Vaccines
    3. Antibiotics and Vaccines
      3.3: Ways of Maintaining Good Health (Practice Test)
      Keeping Healthy and Strong
    1. Keeping Healthy and Strong
      2. Ways of Cleanliness
    2. Ways of Cleanliness
      3. Antibiotics and Vaccines
    3. Antibiotics and Vaccines
      3.4: Balanced Diet And Its Components (Practice Test)
      Keeping Healthy and Strong
    1. Keeping Healthy and Strong
      2. Balanced Diet and Its Importance
    2. Balanced Diet and Its Importance
      3. Food Groups and their Importance
    3. Food Groups and their Importance
      3.5: Value of Clean Drinking Water (Practice Test)
      Balanced Diet and Its Importance
    1. Balanced Diet and Its Importance
      2. Uses of Water
    2. Uses of Water
      3. Food Groups and their Importance
    3. Food Groups and their Importance
      4. Water Pollution
    4. Water Pollution
      5. Separation of Insoluble Solids From Water
    5. Separation of Insoluble Solids From Water
      3.6: Value of Clean Drinking Water
      Uses of Water
    1. Uses of Water
      2. Water Pollution
    2. Water Pollution
      3. Separation of Insoluble Solids From Water
    3. Separation of Insoluble Solids From Water

    Chapter 4 Matter and its Characteristics ( 12 videos)

      4.1: States of Matter and It's Characteristics
      Matter and Its States
    1. Matter and Its States
      2. Properties of Solids and their Particle Arrangements
    2. Properties of Solids and their Particle Arrangements
      3. Properties of Liquids and their Particle Arrangement
    3. Properties of Liquids and their Particle Arrangement
      4. Properties of Gases and their Particle Arrangement
    4. Properties of Gases and their Particle Arrangement
      4.2: Classification of Objects on the Basis of Physical Properties
      Comparison of Objects on the Basis of Physical properties
    1. Comparison of Objects on the Basis of Physical properties
      2. Metals and their Properties
    2. Metals and their Properties
      4.3: Physical Properties of Metals
      Properties of Solids and their Particle Arrangements
    1. Properties of Solids and their Particle Arrangements
      2. Properties of Metals
    2. Properties of Metals
      3. Properties of Liquids and their Particle Arrangement
    3. Properties of Liquids and their Particle Arrangement
      4. Properties of Gases and their Particle Arrangement
    4. Properties of Gases and their Particle Arrangement
      4.4: Physical Properties of Metals
      Metals and their Properties
    1. Metals and their Properties
      4.5: Metals as Conductors
      Properties of Metals
    1. Properties of Metals

    Chapter 5 Forms of Energy and Energy Transfer ( 29 videos)  (Practice Test)

      5.1: Common Sources and Uses of Energy (Practice Test)
      Energy and its Needs
    1. Energy and its Needs
      2. Natural Resources and Their Importance
    2. Natural Resources and Their Importance
      3. Uses of Heat and Light
    3. Uses of Heat and Light
      4. Can Energy Change From One Kind To Another?
    4. Can Energy Change From One Kind To Another?
      5. How to Save Energy?
    5. How to Save Energy?
      5.2: Light and Sound in Everyday Life (Practice Test)
      Can Energy Change From One Kind To Another?
    1. Can Energy Change From One Kind To Another?
      2. Reflection of Light
    2. Reflection of Light
      3. How to Save Energy?
    3. How to Save Energy?
      4. Reflection in Water and Mirrors and Formation of Rainbow
    4. Reflection in Water and Mirrors and Formation of Rainbow
      5. Light and Shadow
    5. Light and Shadow
      6. Sounds
    6. Sounds
      7. Production and Propagation of Sound
    7. Production and Propagation of Sound
      5.3: Heat (Practice Test)
      Light Travels in Straight Line
    1. Light Travels in Straight Line
      2. Heat and Temperature
    2. Heat and Temperature
      3. Changes that Occur When a Hot Object is Brought in Contact With a Cold Object.
    3. Changes that Occur When a Hot Object is Brought in Contact With a Cold Object.
      4. Thermometers and Its Types
    4. Thermometers and Its Types
      5.4: Electricity and Simple Electric Circuits (Practice Test)
      Reflection of Light
    1. Reflection of Light
      2. Electrical energy In A Circuit Can Be Transformed Into Other Forms of Energy
    2. Electrical energy In A Circuit Can Be Transformed Into Other Forms of Energy
      3. Rainbow Formation
    3. Rainbow Formation
      306 views
      4. Electric Circuit and Its Components
    4. Electric Circuit and Its Components
      5. Flow of Current and a Complete Circuit
    5. Flow of Current and a Complete Circuit
      5.5: Sound Energy (Practice Test)
      Sound Energy
    1. Sound Energy
      644 views
      2. How is Sound Produced?
    2. How is Sound Produced?
      5.6: Heat (Practice Test)
      Heat and Temperature
    1. Heat and Temperature
      2. Thermometers and Its Types
    2. Thermometers and Its Types
      5.7: Electrical Energy (Practice Test)
      Electrical Energy
    1. Electrical Energy
      690 views
      2. Electrical energy In A Circuit Can Be Transformed Into Other Forms of Energy
    2. Electrical energy In A Circuit Can Be Transformed Into Other Forms of Energy
      3. Electric Circuit and Its Components
    3. Electric Circuit and Its Components
      4. Flow of Current and a Complete Circuit
    4. Flow of Current and a Complete Circuit

    Chapter 6 Force and Motion ( 21 videos)

      6.1: Forces and Motion
      Force
    1. Force
      2. Movement
    2. Movement
      3. Importance of Gravitational Force
    3. Importance of Gravitational Force
      4. Gravitational Force
    4. Gravitational Force
      5. Friction
    5. Friction
      6. Methods to Reduce Friction
    6. Methods to Reduce Friction
      7. Advantages of Friction
    7. Advantages of Friction
      8. Disadvantages of Friction
    8. Disadvantages of Friction
      6.2: Simple Machines
      Friction
    1. Friction
      2. Simple Machines
    2. Simple Machines
      3. Methods to Reduce Friction
    3. Methods to Reduce Friction
      4. Wheel and Axle and Screw
    4. Wheel and Axle and Screw
      5. Advantages of Friction
    5. Advantages of Friction
      6. Inclined Plane and Gear
    6. Inclined Plane and Gear
      7. Disadvantages of Friction
    7. Disadvantages of Friction
      8. Lever
    8. Lever
      9. Pulley and Wedge
    9. Pulley and Wedge
      6.3: Simple Machines
      Simple Machines
    1. Simple Machines
      2. Lever
    2. Lever
      3. Pulley and Wedge
    3. Pulley and Wedge
      4. Inclined Plane and Gear
    4. Inclined Plane and Gear

    Chapter 7 The Earth and its Resources ( 14 videos)  (Practice Test)

      7.1: Earth And Its Physical Characteristics
      Earth’s Surface
    1. Earth’s Surface
      7.2: Earth’s Resources (Practice Test)
      Sources of Water
    1. Sources of Water
      2. Natural Resources and Their Importance
    2. Natural Resources and Their Importance
      3. Formation of Fossils
    3. Formation of Fossils
      4. Renewable Resources
    4. Renewable Resources
      5. Non-renewable Resources
    5. Non-renewable Resources
      6. Effects of Decreasing Natural Resources
    6. Effects of Decreasing Natural Resources
      7.3: Conservation of Natural Resources (Practice Test)
      Natural Resources and Their Importance
    1. Natural Resources and Their Importance
      2. Conservation of Natural Resources
    2. Conservation of Natural Resources
      3. Formation of Fossils
    3. Formation of Fossils
      4. Renewable Resources
    4. Renewable Resources
      5. Non-renewable Resources
    5. Non-renewable Resources
      6. Effects of Decreasing Natural Resources
    6. Effects of Decreasing Natural Resources
      7.4: Conservation of Natural Resources
      Conservation of Natural Resources
    1. Conservation of Natural Resources

    Chapter 8 Earths Weather and Climate ( 6 videos)  (Practice Test)

      8.1: Weather and Climate (Practice Test)
      Earth's Weather and Climate
    1. Earth's Weather and Climate
      2. The Weather
    2. The Weather
      8.2: Relationship Between Geographical Location And Climate (Practice Test)
      Earth's Weather and Climate
    1. Earth's Weather and Climate
      2. Temperature Changes With Season and Location on Earth
    2. Temperature Changes With Season and Location on Earth
      8.3: Relationship Between Geographical Location and Climate
      Temperature Changes With Season and Location on Earth
    1. Temperature Changes With Season and Location on Earth
      8.4: Global Change in Climate
      Effects of Burning Fossil Fuels and Releasing Greenhouse Gases
    1. Effects of Burning Fossil Fuels and Releasing Greenhouse Gases

    Chapter 9 Earth in the Solar System ( 16 videos)

      9.1: The Solar System
      Solar System
    1. Solar System
      2. The Earth and Sun
    2. The Earth and Sun
      3. Planets of Our Solar System
    3. Planets of Our Solar System
      4. Mercury, Venus, Earth and Mars
    4. Mercury, Venus, Earth and Mars
      9.2: Rotational Movement of the Earth (Practice Test)
      Movement and Phases of Moon
    1. Movement and Phases of Moon
      2. Day and night
    2. Day and night
      3. Movement and Phases of Moon
    3. Movement and Phases of Moon
      4. Light and Shadow
    4. Light and Shadow
      5. Seasons in Northern and Southern Hemispheres
    5. Seasons in Northern and Southern Hemispheres
      6. Seasons in Northern and Southern Hemispheres (continued)
    6. Seasons in Northern and Southern Hemispheres (continued)
      9.3: Solar and Lunar Eclipses
      Earth's Revolution and Rotation
    1. Earth's Revolution and Rotation
      2. Solar and Lunar Eclipses
    2. Solar and Lunar Eclipses
      9.4: Relation of Changing Shadows with the Axial Rotation of the Earth
      Size of Shadow With The Position of Sun
    1. Size of Shadow With The Position of Sun
      9.5: Annual Rotation of Earth Around the Sun
      Seasons in Northern and Southern Hemispheres
    1. Seasons in Northern and Southern Hemispheres
      2. Seasons in Northern and Southern Hemispheres (continued)
    2. Seasons in Northern and Southern Hemispheres (continued)
      9.6: Eclipse
      Solar and Lunar Eclipses
    1. Solar and Lunar Eclipses

    Chapter 10 Technology in EverydayLife ( 7 videos)  (Practice Test)

      10.1: Basic Technical Model Making And First Aid Box (Practice Test)
      Safety at Home/Surroundings (Do not touch switch etc.)
    1. Safety at Home/Surroundings (Do not touch switch etc.)
      32 views
      2. Important Components of First Aid Box
    2. Important Components of First Aid Box
      3. Using Digital and Clinical Thermometer to Measure Body Temperature
    3. Using Digital and Clinical Thermometer to Measure Body Temperature
      4. Digital Blood Pressure Monitor
    4. Digital Blood Pressure Monitor
      10.2: First Aid Box (Practice Test)
      Important Components of First Aid Box
    1. Important Components of First Aid Box
      2. Using Digital and Clinical Thermometer to Measure Body Temperature
    2. Using Digital and Clinical Thermometer to Measure Body Temperature
      3. Digital Blood Pressure Monitor
    3. Digital Blood Pressure Monitor