8th grade chemistry

SYNTHETIC FIBRES AND PLASTICS

  • What are synthetic fibres?

  • Types of synthetic fibres

  • Characteristics of synthetic fibres

  • Plastics

  • Plastics are poor conductors

  • Properties of plastics

  • Plastics and environment

COAL AND PETROLEUM

  • Natural resources

  • Coal-types of coal and uses

  • Petroleum

  • Refining of petroleum

  • Petrochemicals and uses

  • Natural gas

CHEMICAL EFFECTS OF ELECTRIC CURRENT

  • Do liquids conduct electricity?

  • Poor and good conductor

  • Electroplating

METALS AND NON METALS

  • Physical properties of metals and non metals

  • Chemical properties of metals and non metals

  • Uses of metals and non metals

COMBUSTION AND FLAME

  • What is combustion

  • How do we control fire

  • Types of combustion

  • Flame

  • Fuel efficiency

POLLUTION OF AIR AND WATER

  • Air Pollution

  • How does Air get polluted

  • Greenhouse Effect

  • Water pollution

  • How does water get polluted