Types Of Rocks And Their Characteristics! Trivia Facts Quiz

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  • 1/20 Questions

    If a rock were formed from molten magma, what type of rock is it?

    • Igneous
    • Sedimentary
    • Metamorphic
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About This Quiz

Below is the Trivia Facts Quiz on Types of Rocks and Their Characteristics! There are generally three types of rocks, and they differ from each other on how they are formed. Did you know that through some changes, one rock might become the other? How about you test how much you know about all three types by tackling this quiz.

Types Of Rocks And Their Characteristics! Trivia Facts Quiz - Quiz

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  • 2. 

    Rocks that form due to the lithification of sediments are considered:

    • Igneous

    • Sedimentary

    • Metamorphic

    Correct Answer
    A. Sedimentary
    Explanation
    Rocks that form due to the lithification of sediments are considered sedimentary. This is because sedimentary rocks are formed from the accumulation and compaction of sediments, which can include materials like sand, silt, and clay. Over time, these sediments are buried and subjected to pressure, causing them to solidify and form sedimentary rocks.

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  • 3. 

    Igneous rocks that cool very quickly above the Earth's surface are considered:

    • Extrusive

    • Intrusive

    Correct Answer
    A. Extrusive
    Explanation
    Igneous rocks that cool very quickly above the Earth's surface are considered extrusive. This is because when magma or lava cools quickly on the surface, it does not have enough time to form large crystals. Instead, the rocks have a fine-grained texture. Extrusive rocks are typically found in volcanic areas and can include basalt, pumice, and obsidian. In contrast, intrusive rocks cool slowly beneath the Earth's surface, allowing for the formation of larger crystals, and are known as intrusive rocks.

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  • 4. 
    Identify the following rock that is formed in sand rich areas. - ProProfs

    Identify the following rock that is formed in sand rich areas.

    • Breccia

    • Sandstone

    • Limestone

    • Shale

    Correct Answer
    A. Sandstone
    Explanation
    Sandstone is the correct answer because it is a type of rock that is formed in sand-rich areas. It is composed mainly of sand-sized minerals or rock grains, held together by a natural cementing material such as silica, calcium carbonate, or iron oxide. Sandstone is commonly found in areas where there has been significant erosion and deposition of sand, such as beaches, deserts, and riverbeds. It is a sedimentary rock that forms over time as layers of sand accumulate and become compacted.

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  • 5. 

    Rocks that form due to intense heat and pressure are known as:

    • Igneous

    • Sedimentary

    • Metamorphic

    Correct Answer
    A. Metamorphic
    Explanation
    Rocks that form due to intense heat and pressure are known as metamorphic rocks. This process involves the transformation of existing rocks, either igneous or sedimentary, through high temperatures and pressure deep within the Earth's crust. These conditions cause the minerals within the rock to recrystallize and rearrange, resulting in a new rock with a different texture and composition. Metamorphic rocks can be identified by their distinct layering, banding, or foliation, which is a result of the intense pressure during formation.

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  • 6. 

    Metamorphic rocks that form in areas that undergo regional metamorphism are likely:

    • Foliated

    • Non-foliated

    Correct Answer
    A. Foliated
    Explanation
    Metamorphic rocks that form in areas that undergo regional metamorphism are likely to be foliated. Regional metamorphism occurs over large areas and is typically associated with the intense pressure and heat that comes from tectonic activity. This pressure and heat cause the minerals in the rock to align in parallel layers, resulting in a foliated texture. Non-foliated rocks, on the other hand, form under different conditions and do not exhibit this layered texture.

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  • 7. 
    Identify the following igneous rock...it is glassy and is extrusive. - ProProfs

    Identify the following igneous rock...it is glassy and is extrusive.

    • Granite

    • Obsidian

    • Pumice

    • Diorite

    Correct Answer
    A. Obsidian
    Explanation
    Obsidian is the correct answer because it is an igneous rock that is glassy and forms from rapidly cooling lava. It is extrusive, meaning it forms on the Earth's surface as opposed to intrusive rocks that form underground. Granite, diorite, and pumice are all igneous rocks, but they do not have the glassy texture characteristic of obsidian.

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  • 8. 
    How fast did the crystals cool when this igneous rock formed? - ProProfs

    How fast did the crystals cool when this igneous rock formed?

    • Slow

    • Fast

    Correct Answer
    A. Slow
    Explanation
    The crystals in igneous rock cool slowly because they are formed by the slow cooling and solidification of molten rock, also known as magma. As the magma cools, the atoms and molecules within it arrange themselves into a crystalline structure, forming the minerals that make up the rock. The slower the cooling process, the more time the atoms have to arrange themselves into larger, well-defined crystals. Conversely, fast cooling would result in smaller, less organized crystals. Therefore, the correct answer is slow.

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  • 9. 

    Sedimentary rocks that form due to evaporation of water (such as halite or gypsum) are classified as:

    • Chemical

    • Clastic

    Correct Answer
    A. Chemical
    Explanation
    Sedimentary rocks that form due to the evaporation of water, such as halite or gypsum, are classified as chemical rocks. This is because these rocks are formed from the precipitation of dissolved minerals in water, rather than from the accumulation and compaction of sediments like clastic rocks. Chemical rocks are typically formed in environments where water evaporates, leaving behind the minerals that were dissolved in it.

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  • 10. 

    Quartzite is an example of a non-foliated rock.  Is it formed by regional or contact metamorphism?

    • Regional

    • Contact

    Correct Answer
    A. Contact
    Explanation
    Quartzite is formed through the process of contact metamorphism, which occurs when rocks are subjected to high temperatures and pressures due to contact with magma or hot fluids. This process causes the recrystallization of the original rock, resulting in the formation of quartzite. Regional metamorphism, on the other hand, occurs over a larger area and is typically associated with the movement of tectonic plates and the deep burial of rocks.

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  • 11. 
    In what type of environment would the following rock likely have formed? - ProProfs

    In what type of environment would the following rock likely have formed?

    • Swamp

    • Marine/ocean

    • River

    • Glacial

    Correct Answer
    A. Marine/ocean
    Explanation
    This rock likely formed in a marine/ocean environment because marine/ocean environments are characterized by the presence of water bodies such as seas and oceans. These environments provide the necessary conditions for the deposition and accumulation of sediments, which over time can compact and cement together to form rocks. The marine/ocean environment is also known for its diverse range of sediment types, including sand, silt, and clay, which can contribute to the formation of different types of rocks.

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  • 12. 

    If an igneous rock's grain size were classified as course, it would likely be:

    • Extrusive

    • Intrusive

    Correct Answer
    A. Intrusive
    Explanation
    If an igneous rock's grain size is classified as coarse, it would likely be intrusive. This is because coarse-grained rocks are formed when molten magma cools slowly beneath the Earth's surface, allowing for larger mineral crystals to form. Intrusive rocks are formed in this way, as they solidify slowly within the Earth's crust. Extrusive rocks, on the other hand, are formed when lava cools quickly on the surface, resulting in fine-grained or glassy textures. Therefore, the coarse grain size suggests a slower cooling process, indicating an intrusive rock.

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  • 13. 
    Identify the pictured rock. - ProProfs

    Identify the pictured rock.

    • Pumice

    • Conglomerate

    • Quartzite

    • Limestone

    Correct Answer
    A. Conglomerate
    Explanation
    The pictured rock is identified as conglomerate. Conglomerate is a type of sedimentary rock that is composed of rounded pebbles and larger fragments embedded in a matrix of smaller particles. It is formed through the process of sedimentation, where the pebbles and fragments are transported and deposited by water or ice. The presence of these distinct rounded pebbles within the rock helps to differentiate it from other types of rocks such as pumice, quartzite, and limestone.

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  • 14. 
    Identify the following foliated rock. - ProProfs

    Identify the following foliated rock.

    • Slate

    • Gneiss

    • Quartzite

    • Marble

    Correct Answer
    A. Gneiss
    Explanation
    Gneiss is the correct answer because it is a foliated rock, meaning it has distinct layers or bands. Gneiss is formed from the metamorphism of pre-existing rocks, such as granite or shale, and exhibits a banded appearance due to the segregation of different minerals. It typically has a coarse-grained texture and can display a range of colors. Gneiss is commonly found in mountainous regions and is used as a building material and in decorative applications. Slate, quartzite, and marble are all non-foliated rocks and do not exhibit the distinct layering seen in gneiss.

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  • 15. 

    In what type of environment is a conglomerate rock likely formed?

    • Glacial

    • River

    • Swamp

    • Windy

    Correct Answer
    A. River
    Explanation
    Conglomerate rock is likely formed in a river environment. Rivers have the ability to transport and deposit large, rounded sediments such as pebbles, cobbles, and boulders. Over time, these sediments become compacted and cemented together, forming conglomerate rock. The fast-moving water in rivers helps to sort and round the sediments, giving conglomerate rock its characteristic appearance.

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  • 16. 
    Identify the following rock that is formed when mud compacts at the bottom of a freshwater lake. - ProProfs

    Identify the following rock that is formed when mud compacts at the bottom of a freshwater lake.

    • Conglomerate

    • Coal

    • Limestone

    • Shale

    Correct Answer
    A. Shale
    Explanation
    Shale is the correct answer because it is a type of rock that is formed when mud compacts at the bottom of a freshwater lake. Shale is composed of fine-grained particles, mainly clay minerals, and is characterized by its ability to split easily into thin layers. It is commonly found in lake and ocean bottoms where fine sediment accumulates over time and undergoes compaction.

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  • 17. 
    Identify the following non-foliated rock. - ProProfs

    Identify the following non-foliated rock.

    • Slate

    • Gneiss

    • Quartzite

    • Marble

    Correct Answer
    A. Marble
    Explanation
    Marble is a non-foliated rock because it lacks the characteristic layering or banding found in foliated rocks like slate, gneiss, and quartzite. Instead, marble is formed from the metamorphism of limestone or dolomite, resulting in a crystalline structure with interlocking grains. This lack of foliation gives marble its distinct smooth and uniform appearance, making it a popular choice for sculptures, countertops, and flooring.

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  • 18. 
    Identify the following igneous rock...it has fine grain size and is extrusive. - ProProfs

    Identify the following igneous rock...it has fine grain size and is extrusive.

    • Granite

    • Obsidian

    • Pumice

    • Diorite

    Correct Answer
    A. Pumice
    Explanation
    Pumice is the correct answer because it is an extrusive igneous rock with a fine grain size. Pumice forms when lava with high gas content erupts and cools quickly, trapping bubbles of gas inside the rock. These trapped bubbles give pumice its characteristic porous texture and lightweight nature. Due to its fine grain size, pumice is often used in various industrial applications, such as abrasive cleaners and lightweight concrete.

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  • 19. 
    Identify the following rock that has angular grain shape. - ProProfs

    Identify the following rock that has angular grain shape.

    • Conglomerate

    • Limestone

    • Shale

    • Breccia

    Correct Answer
    A. Breccia
    Explanation
    Breccia is the correct answer because it is a type of rock that is composed of angular fragments that are cemented together. The angular grain shape refers to the sharp, jagged edges of the rock fragments in breccia. Conglomerate, limestone, and shale do not typically have angular grain shapes, making breccia the most appropriate choice.

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  • 20. 
    What type of metamorphism did this rock likely experience? - ProProfs

    What type of metamorphism did this rock likely experience?

    • Foliated

    • Non-foliated

    • Contact

    • Regional

    Correct Answer
    A. Contact
    Explanation
    The rock likely experienced contact metamorphism. Contact metamorphism occurs when rocks come into contact with hot magma or lava, causing them to undergo changes in mineral composition and texture. This type of metamorphism usually occurs in localized areas near igneous intrusions, such as around volcanic vents or magma chambers. The heat from the magma alters the surrounding rocks, but there is typically no significant pressure or deformation involved, resulting in a non-foliated texture.

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  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 07, 2010
    Quiz Created by
    Plattea
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