SSC (English Medium) Class 8Maharashtra State Board

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Answer the Following. - SSC (English Medium) Class 8 - Science

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Answer the following.

Which are the main ingredients of glass ? 


Main ingredients of glass are as follows:

  • Sand or Silica
  • Sodium Carbonate
  • Lime or Calcium Oxide
  • Other Additives
  • Lead glass: mixture of sand, soda, limestone and lead oxide
  • Silica glass: using silica only
  • Borosilicate: mixture of sand, soda, boric acid, aluminium oxide
  • Alkali silicate glass: mixture of sand, soda
  • Optical glass: micture of sand, soda, limestone, barium oxide and boron
  • Boron – this changes the thermal and electrical properties of the glass and is used to make Pyrex glassware which can withstand extremes of heat and cold.
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 Balbharati Solution for Balbharati Class 8 Science - General Science (2018 to Current)
Chapter 17: Man made Materials
Exercise | Q: 3.4 | Page no. 121
Solution Answer the Following. Concept: Concept of Glass.
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