What are rocks a mixture of?, Minerals, Water, Soil, Sand, Minerals are __________ chemical substances., Artificial, Manufactured, Naturally occurring, Man-made, Which is a good example of a mixture of many types of rocks?, Rivers, Mountains, Oceans, Forests, What are the three main types of rocks?, Igneous, Sedimentary, Metamorphic, Granite, Marble, Limestone, Metallic, Non-metallic, Organic, Coal, Petroleum, Soil, Minerals in a liquid state due to excessive heat are called:, Lava, Magma, Sand, Calcite, Magma that flows onto the earth's surface is called:, Granite, Obsidian, Lava, Shale, How are igneous rocks formed?, By excessive heat and pressure, As magma hardens to form solid rocks, By animal shells collecting underwater, By plant remains decaying, Which igneous rock is usually pink or grey in colour and very hard in nature?, Granite, Pumice, Obsidian, Sandstone, Which igneous rock can float on water?, Granite, Obsidian, Pumice, Marble, Obsidian is like what material?, Clay, Glass, Chalk, Cement, What causes sedimentary rocks to form?, Heat and pressure changes, Rapid cooling of lava, Rocks broken into smaller pieces by wind, water and temperature changes, Decay of plants, Most sedimentary rocks are formed where?, Underground, Underwater, In volcanoes, In deserts, Which sedimentary rock is made of sand particles deposited close together?, Shale, Limestone, Sandstone, Granite, Which sedimentary rock consists of fine grains of mud and clay?, Sandstone, Shale, Limestone, Quartzite, Limestone is formed by a mineral called __________ and bits of __________., Granite; plants, Calcite; animal shells, Lava; clay, Sand; gravel, What causes metamorphic rocks to form?, Wind and rain, Heat and pressure changes, Cooling magma, Running water, Metamorphic rocks are a form of which two rock types?, Granite and marble, Coal and petroleum, Igneous and sedimentary, Sand and clay, What does the word metamorphose mean?, To cool, To melt, To change form, To harden, Quartzite comes from a sedimentary rock called __________., Granite, Limestone, Sandstone, Shale, Marble is formed from which rock?, Granite, Limestone, Shale, Sandstone, Gneiss is formed from which igneous rock?, Granite, Limestone, Marble, Shale, Minerals can be divided into which two types?, Igneous and sedimentary, Metallic and non-metallic, Organic and inorganic, Natural and artificial, Minerals from which metals can be extracted are called what?, Non-metallic minerals, Metallic minerals, Sedimentary minerals, Rock minerals, Which of the following is a metallic mineral?, Coal, Oil, Gold, Limestone, Which of the following is a non-metallic mineral?, Silver, Iron, Gold, Coal, What are some uses of metallic minerals?, Jewellery, construction and electrical appliances, Steam train engines, Making kerosene and diesel, Making plastic, Coal was formed by the remains of what?, Animals and shells, Plants and other vegetation, Sand and clay, Lava and magma, Coal is a fossil fuel used in the running of what?, Cars only, Aeroplanes only, Steam engines, Ships only, Petroleum is also used as a what?, Rock type, Metallic mineral, Fossil fuel, Soil component, Petroleum was formed from organic materials such as what?, Animals and shells, Algae and plants, Sand and gravel, Mud and clay, What transformed organic materials into petroleum?, Wind and water, Excessive heat and pressure, Sunlight and air, Weathering, What is soil?, A fossil fuel, A type of mineral, The upper layer of earth in which plants grow, A type of rock, Why is soil important?, For making metals, For plant growth, For forming magma, For making fossils, How is soil formed?, By cooling lava, By the breaking down of rocks due to wind, water, temperature and microorganisms, By melting rocks, By fossil formation, The whole process of breaking down rocks is called what?, Erosion, Weathering, Metamorphosis, Sedimentation, Name the main components found in soil., Gold, silver, iron and copper, Gravel, clay, sand, humus, water and air, Coal, petroleum and oil, Lava, magma and ash, Why are earthworms helpful to soil?, They remove nutrients, They make the soil loose and help bring nutrients into the soil or onto the surface, They cause erosion, They destroy plant roots, What are the four main factors that cause soil erosion?, Heat, pressure, lava and magma, Water, Wind, Deforestation, Other Causes, Sand, gravel, clay and humus, Plants, animals, fungi and bacteria, How does deforestation cause soil erosion?, It increases rainfall, It melts rocks into soil, Without tree roots holding soil firmly in place, the soil becomes loose and is easily blown away by wind and water, It creates more fertile soil immediately

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