Rocks 4.0 / 5 based on 1 rating ? Applied ScienceTypes of RockRock CycleGCSEAQA Created by: amypowerCreated on: 23-06-15 12:10 What are rocks made of? Rocks are made of grains that fit together. Each grain in the rock is made from a mineral, which is a chemical compound. 1 of 19 What are the different types of grains with example? Interlocking Grains - Granite Rounded Grains - Sandstone 2 of 19 What are rocks that can absorb water called? Porous Rocks and they are usually rounded grains 3 of 19 Name the three main types of rocks? Sedimentery, Igneous and Metamorphic 4 of 19 What is the order of processes of the formation of a sedimentery rock? sedimentation → compaction → cementation 5 of 19 Describe a sedimentery rock? They contain rouunded grains such as mud and sand. They have layers and sometimes fossils can be trapped within. 6 of 19 In a sedimentery rock where are the oldest layers? The oldest layers are at the bottom. (newest at the top) 7 of 19 Describe a metamoprhic rock? They have been morphed from a different type of rock. Contain thin layers. Very hard and rarely have fossils. 8 of 19 What types of rocks can metamorphic rocks be before they have changed? Igneous or sedimentery 9 of 19 What 2 conditions are needed to form a metamorphic rock? Heat and Pressure 10 of 19 What causes rocks to become heated? Magma 11 of 19 Marble is formed from what rock? Limestone 12 of 19 Why do you think metamorphic rock is harder? It has been heated and pressurized 13 of 19 Why on't you often find fossils in metamorphic rocks? The heat has melted them 14 of 19 Describe an igneous rock? Contains randomly interlocking crystals which can vary in size. Do not contain fossils and are formed when the magma solidfies. 15 of 19 What are the 2 types of igneous rock? Intrusive and Extrusive 16 of 19 What is the defintion of intrusive and extrusive? Intrusive- Have large crystals because they have cooled slowly Extrusive - Have small crystlas because they have cooled quickly 17 of 19 What igneous rock has been cooled on the surface of the earth? Extrusive 18 of 19 Give an example of each rock? Sedimentery- Limestone/sandstone Metamorphic - Slate/Marble Igneous - Pumice/granite 19 of 19
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