General Science | Class 7

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    Chapter 1 Human Organ Systems ( 18 videos)  (Practice Test)

      1.1: Human Digestive System (Practice Test)
      Food And Nutrition
    1. Food And Nutrition
      672 views
      2. Digestive System
    2. Digestive System
      2514 views
      3. Digestion in Stomach
    3. Digestion in Stomach
      430 views
      4. Small And Large Intestine
    4. Small And Large Intestine
      440 views
      5. Digestive Glands
    5. Digestive Glands
      796 views
      1.2: Disorders of Digestion
      Diarrhoea
    1. Diarrhoea
      255 views
      2. Constipation
    2. Constipation
      245 views
      1.3: Respiratory System (Practice Test)
      Respiration
    1. Respiration
      543 views
      2. Parts of Respiratory System
    2. Parts of Respiratory System
      5520 views
      3. Respiratory System
    3. Respiratory System
      2357 views
      4. Exchange of Carbon Dioxide And Oxygen
    4. Exchange of Carbon Dioxide And Oxygen
      337 views
      5. Mechanism of Breathing
    5. Mechanism of Breathing
      8682 views
      6. Comparison of Respiration and Burning
    6. Comparison of Respiration and Burning
      212 views
      1.4: Respiratory Disorders (Practice Test)
      Common Cold
    1. Common Cold
      73 views
      2. Pneumonia
    2. Pneumonia
      146 views
      3. Pulmonary Tuberculosis (T.B)
    3. Pulmonary Tuberculosis (T.B)
      1828 views
      4. Asthma
    4. Asthma
      213 views
      5. Introduction To Transport In Humans And Plants
    5. Introduction To Transport In Humans And Plants
      392 views

    Chapter 2 Transport Systems In Humans And Plants ( 17 videos)  (Practice Test)

      2.1: Transport In Human Circulatory System (Practice Test)
      Circulatory System of Frog
    1. Circulatory System of Frog
      2130 views
      2. Blood Circulatory System
    2. Blood Circulatory System
      3059 views
      3. Blood Vessels
    3. Blood Vessels
      627 views
      4. Human Heart
    4. Human Heart
      400 views
      5. Working of Circulatory System
    5. Working of Circulatory System
      287 views
      6. Flow of Blood in the human Body (Pulse)
    6. Flow of Blood in the human Body (Pulse)
      162 views
      2.2: Disorders In Human Transport System Affected By Diet (Practice Test)
      High Blood Pressure or Hypertension
    1. High Blood Pressure or Hypertension
      126 views
      2. Angina Pectoris
    2. Angina Pectoris
      3. Heart Attack
    3. Heart Attack
      275 views
      4. Symptoms and Prevention of Heart Attack
    4. Symptoms and Prevention of Heart Attack
      68 views
      5. Diabetes
    5. Diabetes
      126 views
      2.3: Transplantation of Dysfunctional Body Parts
      Transplantation of Tissues And Organs
    1. Transplantation of Tissues And Organs
      66 views
      2.4: Transport In Plants (Practice Test)
      Transport In Plants
    1. Transport In Plants
      155 views
      2. Absorption of Water Through Roots
    2. Absorption of Water Through Roots
      1338 views
      3. Transpiration
    3. Transpiration
      97 views
      4. Factors Affecting the Rate of Transpiration
    4. Factors Affecting the Rate of Transpiration
      5640 views
      2.5: Translocation In Plants
      Translocation
    1. Translocation
      109 views

    Chapter 3 Reproduction In plants ( 11 videos)  (Practice Test)

      3.1: Pollination (Practice Test)
      Reproduction
    1. Reproduction
      1299 views
      2. Parts of a Flower
    2. Parts of a Flower
      1132 views
      3. Pollination
    3. Pollination
      324 views
      3.2: Kinds of Pollination
      Pollination
    1. Pollination
      324 views
      3.3: Agents of Pollination (Practice Test)
      Pollination By Water And Wind
    1. Pollination By Water And Wind
      1004 views
      2. Pollination By Animals
    2. Pollination By Animals
      558 views
      3.4: Kinds of Reproduction In Plants (Practice Test)
      Sexual Reproduction in Plants
    1. Sexual Reproduction in Plants
      306 views
      2. Comparison of Asexual and Sexual Reproduction
    2. Comparison of Asexual and Sexual Reproduction
      234 views
      3.5: Process of Fertilization
      Sexual Reproduction In Plants (Germination of Pollen Grains and Fertilization)
    1. Sexual Reproduction In Plants (Germination of Pollen Grains and Fertilization)
      4349 views
      3.6: Formation of Seed and Fruit (Practice Test)
      Formation of Seed And Fruit
    1. Formation of Seed And Fruit
      2487 views
      2. Structure of Seed
    2. Structure of Seed
      3185 views

    Chapter 4 Environment And Feeding Relationship ( 20 videos)  (Practice Test)

      4.1: Ecosystem (Practice Test)
      Environment
    1. Environment
      2217 views
      2. Ecosystem
    2. Ecosystem
      1792 views
      3. Biotic components of an Environment
    3. Biotic components of an Environment
      2541 views
      4. Abiotic components of an Environment
    4. Abiotic components of an Environment
      1496 views
      4.2: Habitat
      Habitat
    1. Habitat
      441 views
      4.3: Kinds of Habitat (Practice Test)
      Fresh Water Habitat
    1. Fresh Water Habitat
      811 views
      2. Forest Habitat
    2. Forest Habitat
      343 views
      3. Desert Habitat
    3. Desert Habitat
      223 views
      4. The Grassland Habitat
    4. The Grassland Habitat
      337 views
      5. Aquatic Habitat Adaptations
    5. Aquatic Habitat Adaptations
      1121 views
      6. Adaptations of Plants To Live In A Habitat
    6. Adaptations of Plants To Live In A Habitat
      170 views
      4.4: Environmental Factors That Cause Daily And Yearly Changes (Practice Test)
      Factors Causing Changes In A Habitat
    1. Factors Causing Changes In A Habitat
      70 views
      2. Factors Causing Changes In A Habitat (Continued)
    2. Factors Causing Changes In A Habitat (Continued)
      26 views
      3. How People Change Habitats?
    3. How People Change Habitats?
      63 views
      4. Adaptations of Animals To Live In A Habitat
    4. Adaptations of Animals To Live In A Habitat
      165 views
      5. Adaptations of Animals To Live In A Habitat (Continued)
    5. Adaptations of Animals To Live In A Habitat (Continued)
      50 views
      4.5: The Physical Environment (Practice Test)
      Factors Causing Changes In A Habitat
    1. Factors Causing Changes In A Habitat
      70 views
      2. Factors Causing Changes In A Habitat (Continued)
    2. Factors Causing Changes In A Habitat (Continued)
      26 views
      3. Food Chain
    3. Food Chain
      1060 views
      4. Food Web
    4. Food Web
      359 views

    Chapter 5 Water ( 10 videos)  (Practice Test)

      5.1: Water For Life
      Introduction to Water
    1. Introduction to Water
      4889 views
      5.2: Sources of Water
      Sources of Water
    1. Sources of Water
      678 views
      2. Underground Water
    2. Underground Water
      242 views
      5.3: Impurities of Water
      Impurities in Water
    1. Impurities in Water
      711 views
      5.4: Cleaning of Water (Practice Test)
      Filtration
    1. Filtration
      32 views
      2. Purifying Water By Boiling
    2. Purifying Water By Boiling
      50 views
      3. Purification of Water By Chlorination And Addition of Potash Alum
    3. Purification of Water By Chlorination And Addition of Potash Alum
      100 views
      4. Distillation
    4. Distillation
      424 views
      5.5: Uses of Water
      Uses of Water
    1. Uses of Water
      172 views
      2. Conservation of Water
    2. Conservation of Water
      265 views

    Chapter 6 Structure of An Atom ( 20 videos)  (Practice Test)

      6.1: Structure of an Atom (Practice Test)
      Structure of An Atom
    1. Structure of An Atom
      302 views
      2. Atom
    2. Atom
      25566 views
      6.2: Atomic Number And Mass Number (Practice Test)
      Atomic Number
    1. Atomic Number
      205 views
      2. Mass Number
    2. Mass Number
      152 views
      3. Atomic Number and Mass Number
    3. Atomic Number and Mass Number
      7401 views
      6.3: The Periodic Table
      The Periodic Table
    1. The Periodic Table
      6.4: Valency (Practice Test)
      Valency
    1. Valency
      277 views
      2. More on Valency
    2. More on Valency
      103 views
      6.5: Distribution of Electrons in Shell (Practice Test)
      Distribution of Electrons in Shell
    1. Distribution of Electrons in Shell
      660 views
      2. More on Distribution of Electrons in Shell
    2. More on Distribution of Electrons in Shell
      133 views
      3. Using 2n²
    3. Using 2n²
      116 views
      6.6: Ions (Practice Test)
      Ions
    1. Ions
      158 views
      2. Cations And Anions
    2. Cations And Anions
      293 views
      6.7: Isotopes (Practice Test)
      Isotopes
    1. Isotopes
      11479 views
      2. Uses of Isotopes
    2. Uses of Isotopes
      10948 views
      6.8: Molecule
      Molecules
    1. Molecules
      186 views
      6.9: Compound
      Compounds
    1. Compounds
      1151 views
      6.10: Chemical Formula (Practice Test)
      Chemical Formula
    1. Chemical Formula
      109 views
      2. Making Chemical Formula of Ionic Compounds
    2. Making Chemical Formula of Ionic Compounds
      127 views
      6.11: Law of Constant Composition (Practice Test)
      Law of Definite(Fixed) Proportion
    1. Law of Definite(Fixed) Proportion
      8995 views

    Chapter 7 Physical and Chemical Changes ( 9 videos)  (Practice Test)

      7.1: Physical and Chemical Changes (Practice Test)
      Physical Changes And Processes
    1. Physical Changes And Processes
      219 views
      2. Chemical Changes and Processes
    2. Chemical Changes and Processes
      161 views
      3. Comparison Between Physical And Chemical Changes
    3. Comparison Between Physical And Chemical Changes
      115 views
      7.2: Physical And Chemical Changes Taking Place In Environment (Practice Test)
      Applications of Chemical Changes And Processes
    1. Applications of Chemical Changes And Processes
      97 views
      2. Hydrocarbons
    2. Hydrocarbons
      148 views
      3. Physical and Chemical Properties of Fertilizers
    3. Physical and Chemical Properties of Fertilizers
      284 views
      4. Environmental Hazards Related to Fertilizers Use
    4. Environmental Hazards Related to Fertilizers Use
      2189 views
      5. Changing of Vegetable Oil Into Ghee
    5. Changing of Vegetable Oil Into Ghee
      3094 views
      6. Plastic And Its Manufacturing
    6. Plastic And Its Manufacturing
      159 views

    Chapter 8 Transmission of Heat ( 10 videos)  (Practice Test)

      8.1: Transfer of Heat
      Heat
    1. Heat
      420 views
      8.2: Modes of Heat Transfer (Practice Test)
      Conduction of Heat
    1. Conduction of Heat
      292 views
      2. Everyday Application of Conduction of Heat
    2. Everyday Application of Conduction of Heat
      1577 views
      8.3: Good And Bad Conductors of Heat
      Good And Bad Conductors of Heat
    1. Good And Bad Conductors of Heat
      2057 views
      8.4: Everyday Applications of Convection of Heat (Practice Test)
      Transfers of Heat In Liquids
    1. Transfers of Heat In Liquids
      223 views
      2. Effects And Application of Convection
    2. Effects And Application of Convection
      405 views
      8.5: Good And Bad Radiators And Absorbers of Heat (Practice Test)
      Radiation
    1. Radiation
      543 views
      2. Good And Bad Radiators And Absorbers of Heat
    2. Good And Bad Radiators And Absorbers of Heat
      352 views
      3. Applications of Radiations In Our Daily Life
    3. Applications of Radiations In Our Daily Life
      209 views
      8.6: The Vacuum Flask
      Vacuum Flask
    1. Vacuum Flask
      514 views

    Chapter 9 Dispersion of Light ( 15 videos)  (Practice Test)

      9.1: Refraction of Light (Practice Test)
      Sources of Light
    1. Sources of Light
      382 views
      2. Refraction of Light
    2. Refraction of Light
      564 views
      3. Laws of Refraction
    3. Laws of Refraction
      176 views
      4. Refractive Index
    4. Refractive Index
      754 views
      9.2: Refraction Light In Different Mediums
      Real And Apparent Depth
    1. Real And Apparent Depth
      803 views
      9.3: Critical Angle
      Critical Angle
    1. Critical Angle
      1166 views
      9.4: Total Internal Reflection (Practice Test)
      Total Internal Reflection
    1. Total Internal Reflection
      244 views
      2. Applications of Total Internal Reflection
    2. Applications of Total Internal Reflection
      1601 views
      3. Periscope
    3. Periscope
      558 views
      4. Mirage
    4. Mirage
      215 views
      5. Fish Eye View
    5. Fish Eye View
      987 views
      9.5: Dispersion of Light (Practice Test)
      Dispersion of Light
    1. Dispersion of Light
      568 views
      2. Rainbow Formation
    2. Rainbow Formation
      306 views
      9.6: Colours of Light
      Colours of Light
    1. Colours of Light
      316 views
      9.7: Colours of Objects
      Colours of Objects
    1. Colours of Objects
      386 views

    Chapter 10 Sound Waves ( 15 videos)  (Practice Test)

      10.1: Transverse And Longitudinal Waves (Practice Test)
      Sound
    1. Sound
      1461 views
      2. Sound Waves Are Vibrations
    2. Sound Waves Are Vibrations
      421 views
      3. Transverse Waves
    3. Transverse Waves
      1579 views
      4. Longitudinal Waves
    4. Longitudinal Waves
      972 views
      5. Amplitude And Wavelength of Sound Waves
    5. Amplitude And Wavelength of Sound Waves
      1114 views
      6. Time Period And Frequency of Sound Waves
    6. Time Period And Frequency of Sound Waves
      701 views
      7. Velocity Or Speed of Sound Waves
    7. Velocity Or Speed of Sound Waves
      487 views
      10.2: Relationship Between Speed, Wavelength And Frequency of Sound Waves
      Relationship Between Speed, Wavelength And Frequency of Sound Waves
    1. Relationship Between Speed, Wavelength And Frequency of Sound Waves
      427 views
      2. Basic Physical Quantities and Their SI Units
    2. Basic Physical Quantities and Their SI Units
      10.3: Pitch And Loudness (Practice Test)
      Pitch of Sound
    1. Pitch of Sound
      6376 views
      2. Pitch of Sound
    2. Pitch of Sound
      4356 views
      3. Loudness of Sound
    3. Loudness of Sound
      989 views
      10.4: Audible Frequency Range
      Audible Frequency Range
    1. Audible Frequency Range
      227 views
      10.5: Application of Different Sounds (Practice Test)
      Sounds Produced By Different Musical Instruments
    1. Sounds Produced By Different Musical Instruments
      262 views
      2. Applications of Different Sounds
    2. Applications of Different Sounds
      97 views

    Chapter 11 Circuits And Electric Current ( 18 videos)  (Practice Test)

      11.1: Current (Practice Test)
      Electricity and Its Kinds
    1. Electricity and Its Kinds
      134 views
      2. Flow of Current
    2. Flow of Current
      189 views
      3. Circuit Diagrams
    3. Circuit Diagrams
      61 views
      11.2: Types of Electric Circuits (Practice Test)
      Series Circuit
    1. Series Circuit
      314 views
      2. Parallel Circuit
    2. Parallel Circuit
      266 views
      11.3: Uses of Circuits (Practice Test)
      Advantages of A Parallel Circuit Over A Series Circuit
    1. Advantages of A Parallel Circuit Over A Series Circuit
      318 views
      11.4: Effects of Electrical Current In Daily Use Appliances
      Energy Transfer In An Electrical Circuit
    1. Energy Transfer In An Electrical Circuit
      1511 views
      2. How Do Charges Flow?
    2. How Do Charges Flow?
      76 views
      11.5: Measuring Current, Voltage And Resistance (Practice Test)
      Resistance
    1. Resistance
      78 views
      2. Relationship Between Voltage And Resistance (Ohm's Law)
    2. Relationship Between Voltage And Resistance (Ohm's Law)
      166 views
      3. Measuring Current
    3. Measuring Current
      77 views
      4. Potential Difference
    4. Potential Difference
      306 views
      5. Measuring Resistance
    5. Measuring Resistance
      97 views
      6. Electric Current
    6. Electric Current
      112 views
      7. Electrical Power
    7. Electrical Power
      51 views
      11.6: Hazards of Electricity (Practice Test)
      Why is Electricity Dangerous?
    1. Why is Electricity Dangerous?
      47 views
      2. Safety Devices To Avoid Electrical Hazards
    2. Safety Devices To Avoid Electrical Hazards
      80 views
      3. More on Safety Devices To Avoid Electrical Hazards
    3. More on Safety Devices To Avoid Electrical Hazards
      60 views

    Chapter 12 Investigating The Space ( 11 videos)  (Practice Test)

      12.1: What's Beyond Our Solar System ? (Practice Test)
      What is Beyond Our Solar System?
    1. What is Beyond Our Solar System?
      279 views
      2. The Origin of The Universe
    2. The Origin of The Universe
      149 views
      12.2: Stars, Galaxies And Milky Way (Practice Test)
      Stars
    1. Stars
      128 views
      2. Galaxies
    2. Galaxies
      311 views
      3. Milky Way Galaxy
    3. Milky Way Galaxy
      201 views
      12.3: The Life Cycle of Stars (Practice Test)
      Birth Of A Star
    1. Birth Of A Star
      102 views
      2. Death Of A Star
    2. Death Of A Star
      77 views
      3. Black Holes
    3. Black Holes
      147 views
      12.4: Looking At Stars (Practice Test)
      Looking At Stars
    1. Looking At Stars
      27 views
      2. Constellations
    2. Constellations
      136 views
      3. Safety Tips For Observing The Sun
    3. Safety Tips For Observing The Sun
      63 views