Science CBSE Homework Assignments, Class 7

  1. Nutrition in plants

    1. Photosynthesis and Nutrition

    2. Modes of nutrients and Symbiotic relationship

  2. Nutrition in animals

    1. Digestive system and buccal cavity

    2. Salivary glands, Intestines and Stomach

    3. Digestion in herbivores and amoeba

  3. Heat

    1. Temperature measurement

    2. Types of thermometer

    3. Heat flow and heat transfer

    4. Convection and radiation

  4. Acids, bases and salts

    1. Acids

    2. Acids & Bases

    3. Litmus paper and colour change

    4. Neutralisation

  5. Physical and chemical changes

    1. Changes in reaction

    2. Changes - Physical & chemical

    3. Rusting and changes

    4. Rusting & Crystallisation

  6. Respiration in organisms

    1. Respiration types

    2. Inhalation and Exhalation

    3. Respiration in organisms

    4. Respiration in plants

  7. Transportation in animals and plants

    1. Bood and blood vessels

    2. Heart - structure and function

    3. Excretion and transportation

    4. Transport system and absorption

  8. Reproduction in plants

    1. Types of reproduction

    2. Vegetative propagation

    3. Pollination and fertilization

    4. Seed dispersal and Post fertilization

  9. Motion and time

    1. Motion and determination of speed

    2. Time period

    3. Units of time and speed

    4. Distance-Time graph

    5. Scale variation

  10. Electric current and its effects

    1. Basics of electric current

    2. Circuit diagram

    3. Heating effect in appliances

    4. Magnetic effect on current

    5. Electromagnets

  11. Light

    1. Path and reflection of light

    2. Image formation and mirrors

    3. Formation of images in different mirrors

    4. Types of lens

    5. Image formation and splitting of colours

  12. Forests: Our life line

    1. Forests and the importance

    2. Role and components of forest

    3. Deforestation and dynamic entity of forest

  13. Waste water story

    1. Sewage & wastewater

    2. Treatement of waste water

    3. Waste disposal and house keeping

    4. Drainage system and sanitation

Class 8
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