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JSS3: BASIC TECHNOLOGY - 1ST TERM

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  1. Materials & Processing - Timber I | Week 1
    5Topics
    |
    1 Quiz
  2. Materials & Processing - Timber II | Week 2
    3Topics
    |
    1 Quiz
  3. Processing of Materials - Metals | Week 3
    5Topics
    |
    1 Quiz
  4. Processing of Clay, Ceramics and Glass | Week 4
    5Topics
    |
    1 Quiz
  5. Methods of Producing Plastics & Rubber | Week 5
    2Topics
    |
    1 Quiz
  6. Drawing Practice - Isometric Drawing | Week 6
    4Topics
    |
    1 Quiz
  7. Oblique Projection | Week 7
    2Topics
    |
    1 Quiz
  8. Orthographic Projection | Week 8
    4Topics
    |
    1 Quiz
  9. Perspective Drawing (One - Point Perspective Drawing) | Week 9
    4Topics
    |
    1 Quiz
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There are two main classes of glass, they are

  1. Transparent glass.
  2. Translucent or Coloured glass.

The different types of glasses include the following:

a. Pyrex glass: This is a special type of glass used for making laboratory equipment.

pyrex glass

b. Safety glass: This is the type of glass used for making the windscreen of automobiles. A rubber sheet is usually placed at the core of this type of glass, so as to avoid splinters from flying during impact.

car windshield

c. Plate glass: This type of glass is used for glazing doors and windows in building constructions.

plate glass

d. Reinforced glass: This is a type of glass that has meshes of wire embedded inside of it to give it improved strength.

Reinforced glass:

e. Fiberglass: This is a type of glass made to resist fire and heat effects. They are generally good as electrical insulators.

fiber glass

f. Bottle glass: This type of glass is often referred to as soda-lime glass, used for bottled drinks and other beverages. It is the cheapest kind of glass.

bottle glass

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