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 Rocks 40 Flashcards |
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Which type of rock is formed from the cooling and solidification of molten magma? |
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 Igneous rock |
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Fill in the blank: ______ are naturally occurring inorganic substances with a specific chemical composition. |
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 Minerals |
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True or False: Sedimentary rocks are known as primary rocks. |
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 False. Sedimentary rocks are known as secondary rocks. |
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What type of igneous rock is formed from magma that cools beneath the Earth's surface? |
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 Intrusive igneous rock |
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Riddle: I am formed from the remains of ancient life, layered and often soft, what am I? |
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 Sedimentary rock |
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Which process involves the transformation of existing rocks due to high temperature and pressure? |
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 Metamorphism |
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Fill in the blank: Rocks are essential for soil formation through ______ and decomposition. |
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 Weathering |
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Which type of metamorphism is caused by extreme heat from magma? |
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Thermal metamorphism |
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True or False: The rock cycle describes the continuous transformation of rocks from one type to another. |
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 True |
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What is the primary component of acid igneous rocks? |
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 Silica (65%–85%) |
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Fill in the blank: ______ rocks are formed from fragments of other rocks compressed and cemented together. |
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 Sedimentary |
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Which classification of sedimentary rocks forms due to water evaporation? |
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 Chemically formed rocks |
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Riddle: I can be formed from high pressure and heat, turning limestone into me, what am I? |
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 Marble |
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What are the two main types of igneous rocks based on where they form? |
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 Extrusive and intrusive igneous rocks |
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True or False: Rocks have a definite chemical composition. |
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 False. Rocks lack a definite chemical composition. |
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Fill in the blank: The process of turning loose sediments into solid rocks is known as ______. |
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 Lithification |
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Which type of sedimentary rock is formed from the remains of sea organisms? |
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 Calcareous marine rocks |
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What is a batholith? |
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 A dome-shaped structure formed by magma cooling below the surface. |
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Fill in the blank: ______ metamorphism occurs due to large-scale crustal movements. |
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 Dynamic |
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Riddle: I am the cycle that describes the transformation of igneous to sedimentary to metamorphic rocks, what am I? |
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 The rock cycle |
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