Lesson Archives

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  1. Ch-15 Some Natural Phenomena

    Easy

    120 mins

  2. Ch-14 Chemical Effects of Electric Current

    Hard

    120 mins

  3. Ch-13 Sound

    Easy

    90 mins

  4. Ch-12 Friction

    Hard

    120 mins

  5. Ch-11 Force and Pressure

    Hard

    90 mins

  6. Ch-10 Reaching the Age of Adolescence

    Easy

    120 mins

  7. Ch-9 Reproduction in Animals

    Easy

    120 mins

  8. Ch-8 Cell-Structure and Functions

    Easy

    90 mins

  9. Ch-7 Conservation of Plants and Animals

    Hard

    90 mins

  10. Ch-6 Combustion and Flame

    Hard

    120 mins

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