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Limestone & its uses

Limestone & its uses. Key words; formula, quicklime, thermal decomposition, word equation. Learning Objectives: By the end of the lesson I can:. • The formula of a compound shows the number and type of atoms that are joined together to make the compound.

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Limestone & its uses

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  1. Limestone & its uses Key words; formula, quicklime, thermal decomposition, word equation

  2. Learning Objectives: By the end of the lesson I can: • The formula of a compound shows the number and type of atoms that are joined together to make the compound. • Calcium carbonate can be decomposed by heating (thermal decomposition) to make quicklime (calcium oxide) and carbon dioxide. • Limestone (CaCO3), and its products have many uses, including slaked lime, mortar, cement, concrete and glass. • Consider and evaluate the environmental, social and economic effects of exploiting limestone and producing building materials from it.

  3. starter What do the following substances have in common? Marble is a Metamorphic rock Calcium carbonate is a pure compound! it is not a rock and hence it is not a mixture! Limestone Marble Chalk Limestone and Chalk are sedimentary rocks Calcium Carbonate

  4. Classify the following substances into groups & explain why you have Sodium Carbonate Chalk Limestone Cement Calcium Carbonate Calcium Sand Carbon Calcium Oxide Oxygen Water Clay Coal

  5. Task: Use your text to create an A-map glass formation • Add keywords • Add pictures • Complete sentences • using keywords to • connect the map Limestone thermal decomposition cement

  6. Swap your map with another pair on your table and add in ANOTHER 4th COLOUR any additional information to further improve their map. Peer Learning

  7. We quarry large amounts of limestone rock because it has many uses. Blocks of limestone can be used for building and it is used to make; Quicklime Cement glass plenary Summary 1

  8. Limestone is made mainly of calcium carbonate What is the formula? When heated strongly in large lime kilns, calcium carbonate decomposes to make quicklime (calcium oxide) and carbon dioxide. What is the formula? We can present the reaction as a word equation What is the word equation? plenary Summary 2

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