Rocks
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| What are the three major groups of rock? | igneous, sedimentary, metamorphic
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| What are the two types of igneous rocks? | extrusive and intrusive
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| What are three characteristics that geologists use to classify rocks? | texture, mineral composition, color
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| What are the three types of sedimentary rocks? | clastic, organic, chemical
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| What are the two types of metamorphic rocks? | nonfoliated, foliated
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| The texture of metamorphic rocks that has grains arranged in parallel layers is described as... | foliated
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| Igneous rocks that cools very quickly when it forms may have a texture that is... | smooth and shiny with no visible grain
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| When all the grains in a rock are large and easy to see, the rock is described as... | coarse grained.
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| To describe a rock's texture, geologists determine... | the size, shape, and the pattern of the rock's grains
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| Which of the following is NOT one of the possible stages in the rock cycle: melting, volcanic activity, smelting: | smelting
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| What are the two most useful metamorphic rocks? | marble and slate
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| A series of processes on Earth's surface and in the crust and mantle that slowly form rocks from one kind to another is called... | the rock cycle
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| The heat that changed a rock into metamorphic rock comes from... | the heat of the mantle.
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| Rock that formed from cooling magma below the surface... | intrusive.
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| The process by which sediment SETTLES OUT of the water or wind carrying it is... | deposition.
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| Overtime, coral buried by sediments can turn into... | limestone.
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| Heat and pressure deep beneath Earth's surface can change a rock into... | metamorphic rock
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| Rock that forms from cooling magma or lava is called... | igneous rock.
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| Geologists classify metamorphic rock according to... | the arrangement of the grains that make up the rock.
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| Metamorphic rocks that are nonfoliated... | have mineral grains line up in parallel layers.
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| Igneous rock that formed from lava that erupted onto Earth's surface (outside) is called... | extrusive rock
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| The process in which dissolved minerals crystallize and glue particles of sediment together is... | cementation
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| The texture of slate is said to be_______ because its mineral particles can be seen only with a microscope. | no visible grain
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| Foliated and nonfoliated are terms used to describe the texture of... | metamorphic
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| When seas or lakes evaporate, a type of sedimentary rock called a _______ rock can form. | chemical
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| The carrying away of rock fragments by water, wind, or ice is called _______, an important process in the formation of sedimentary rocks. | erosion
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| Erosion and deposition play roles in the formation of ________ rocks. | sedimentary
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| As layer upon layer of sediments are deposited, the process of ______ presses them together. | compaction
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| ______ is NOT a sedimentary rock. | granite
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| _______ rocks are formed when minerals that are dissolved in a solution crystalize on Earth's surface. | chemical
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| Coal is an example of _______ rock | sedimentary rock
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| A sedimentary rock that forms where thick layers of plant and animal remains are deposited... | coal
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7thgrade