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JSS2: BASIC TECHNOLOGY - 1ST TERM

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  1. Definition of First Aid | Week 1
    7 Topics
    |
    1 Quiz
  2. Rescue Operation | Week 2
    3 Topics
    |
    1 Quiz
  3. Materials & their Common Uses (Wood) | Week 3
    6 Topics
    |
    1 Quiz
  4. Materials & their Common Uses (Metal) | Week 4
    6 Topics
    |
    1 Quiz
  5. Uses of Common Alloys (Brass & Bronze) | Week 5 & 6
    7 Topics
    |
    1 Quiz
  6. Uses of Ceramics and Glass (Contd) | Week 7 & 8
    4 Topics
    |
    1 Quiz
  7. Uses of Plastics | Week 9
    4 Topics
    |
    1 Quiz
  8. Uses of Rubber | Week 10
    3 Topics
    |
    1 Quiz



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Topic Content:

  • Classification of Metals
    • Ferrous Metals
      • Properties of Ferrous Metals
    • Non-ferrous Metals
      • Properties of Non-ferrous Metals

Metals are classified into two groups namely, ferrous and non-ferrous metals.

i. Ferrous Metals:

These are metals that contain iron. As such, they can be attracted to any magnetic substance, which means they are magnetic. Examples include steel, cast iron, wrought iron, mild steel, and stainless steel.

Properties of Ferrous Metals:

  • Good conductors of electricity.
  • Usually have a silver-like colour.
  • They don’t corrode easily.
  • They have great tensile strength.
  • They are usually magnetic.
  • Ferrous metals a re durable.

 

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