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Gipsa parvertibas English

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Tatjana Revina

The document discusses the chemical properties and transformations of gypsum when heat is applied. It undergoes an endothermic reaction where water is lost from its crystal structure. The document also lists some common uses of gypsum, including in building materials, medical applications like casts, and some food products. It provides instructions for a simple science experiment where students can make a gypsum household item like a tea cup pad by mixing gypsum powder with water and pouring it into a mold.

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Lets Improve with STEAM Att朝stmies ar STEAM Erasmus+ KA2 project 2018 - 2020 Daugavpils Saskaas skola
Gypsum transformations
Gipsa parvertibas English
Chemical reactions CaSO4揃2H2O + heat CaSO4揃0,5H2O + 1,5H2O (steam) CaSO4揃0,5H2O + 1,5H2O CaSO4揃2H2O
Use of gypsum production of building materials - finishing boards, mortars, plaster masses production of molds, including in the case of bone fractures, fixation of the injured limb; manufacture of toothpaste, paint, certain foodstuffs (food additive E 516); Gypsum can be modified by adding polymers and used as bone cement;
How to make gypsum household items(tea cup pad). Weigh 80 g of gypsum Put into a bowl Measure 40 ml of water Water is added to the gypsum with vigorous stirring The prepared mixture is poured into pre-prepared form Curing takes about 8-10 minutes.

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Gipsa parvertibas English

  • 1. Lets Improve with STEAM Att朝stmies ar STEAM Erasmus+ KA2 project 2018 - 2020 Daugavpils Saskaas skola
  • 4. Chemical reactions CaSO4揃2H2O + heat CaSO4揃0,5H2O + 1,5H2O (steam) CaSO4揃0,5H2O + 1,5H2O CaSO4揃2H2O
  • 5. Use of gypsum production of building materials - finishing boards, mortars, plaster masses production of molds, including in the case of bone fractures, fixation of the injured limb; manufacture of toothpaste, paint, certain foodstuffs (food additive E 516); Gypsum can be modified by adding polymers and used as bone cement;
  • 6. How to make gypsum household items(tea cup pad). Weigh 80 g of gypsum Put into a bowl Measure 40 ml of water Water is added to the gypsum with vigorous stirring The prepared mixture is poured into pre-prepared form Curing takes about 8-10 minutes.