C1 Topic 2: Rocks 0.0 / 5 ? ChemistryRocks, ores, metals and alloysGCSEEdexcel Created by: bridgetadjeiCreated on: 30-04-16 14:35 What are the three different types of rocks? Igneous, Sedimentary and Metamorphic 1 of 22 How are igneous rocks formed? Magma 2 of 22 What is meant when igneous rock is instrusive? It cools inside the Earth; it cools slowly 3 of 22 What is the result of instrusive rocks? Big crystals 4 of 22 What is meant by igneous rock is exstrusive? Cools on the surface; it cools quickly 5 of 22 What is the result of exstrusive rocks? Small crystals 6 of 22 What are examples of igneous rock? Granite and Basalt 7 of 22 How is sedimentary rocks formed? Compacted layers of rock 8 of 22 What can be found within sedimentary rocks? Fossils 9 of 22 What are examples of sedimentary rocks? Limestone and Chalk 10 of 22 How are metamorphic rocks formed? Heat and pressure 11 of 22 What are examples of metamorphic rocks? Marble and Shale 12 of 22 What is Limestone? Calcium Carbonate (CaCO3) 13 of 22 What is Limestone used for? Building, glass and toothpaste 14 of 22 What are advantages of quarrying? Offers jobs, better roads and improves local economy 15 of 22 What are disadvantages of quarrying? Loud, visual pollution, destroys habitats and causes traffic 16 of 22 What is thermal decomposition? Breaking down using heat 17 of 22 What is the product of Calcium Carbonate (CaCO3) after thermal decomposition? Carbon Dioxide + Calcium Oxide (CO2 + CaO) 18 of 22 What is the test to show carbon dioxide? Limewater goes cloudy 19 of 22 What is the product when Calcium Oxide (CaO) + Water (H2O) react? Calcium Hydroxide Ca(OH)2 20 of 22 What is the use of Calcium Hydroxide? Neutralises acidic soil 21 of 22 What is added to Calcium Hydroxide to make limewater? Water 22 of 22
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