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[Description]
Limestone
Revise topics of composition and occurrence of limestone. Limestone is a rock composed largely of calcium carbonate. This compound accounts for over 50% of the rock. Varieties of limestone are chalk and marble.
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[Presentation]
Application of limestone in construction
Show animation to revise application of limestone in construction
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[Movie]
Decomposition of calcium carbonate
Show animation about decomposition of calcium carbonate. Presentation of equation of reaction. Revise products of decomposition of calcium carbonate.
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[Presentation]
Mortar
Show slideshow. Revise composition of mortar and describe hardening of mortar.
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[Movie]
Production of cement
Show animation about production of cement and emphasise that cement is produced from limestone, clay and sand at high temperature.
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[Movie]
Production of glass
Revise main component of glass - silicon dioxide, otherwise known as silica, is a substance commonly found in the Earth's crust in the form of sand. Show animation about production of glass.
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