Physical and Chemical Changes

Sindh Board > Class 7 > General Science (Total Videos: 159)

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Chapter 7: Physical and Chemical Changes (8 videos)   (Practice Test)
7.1: Physical and Chemical Changes  (Practice Test)
  1. Physical Changes and Processes
  2. Chemical Changes and Processes
7.2: Physical and Chemical Changes Taking Place in the Environment
  1. Applications of Chemical Changes And Processes
7.3: Hydrocarbons
  1. Hydrocarbons
7.4: Fertilizers
  1. Physical and Chemical Properties of Fertilizers
7.5: Harmful Effects of Improper Use of Fertilizers
  1. Environmental Hazards Related to Fertilizers Use
7.6: Hydrogenation
  1. Changing of Vegetable Oil into Ghee
7.7: Plastics
  1. Manufacturing of Plastics