Science Trivia: Practice Questions On Rocks And Minerals!

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  • 1/19 Questions

    Metamorphic Rocks are formed from the processes of...

    • Compactation & Cementation
    • Melting & Soldification
    • Heat & Pressure
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About This Quiz

Most of the people usually don't know the difference between a mineral and a rock. A mineral is a naturally occurring solid that has a chemical composition and formed through geological processes. A rock, however, is made up of one or more minerals. Take up this Earth science unit 2 quiz on rocks and minerals to see just how much you understand.

Science Trivia: Practice Questions On Rocks And Minerals! - Quiz

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  • 2. 

    If igneous rocks have large crystals due to the rate of cooling was slower, then it would be an extrusive/intrusive rock

    • Intrusive

    • Extrusive

    • Neither

    Correct Answer
    A. Intrusive
    Explanation
    If igneous rocks have large crystals, it indicates that the rate of cooling was slower. Slower cooling allows more time for the minerals to grow and form larger crystals. This suggests that the rock formed deep within the Earth's crust, where the cooling process is slower. Therefore, the correct answer is intrusive, as intrusive rocks form from the slow cooling and solidification of magma deep underground.

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  • 3. 

    Fracture: Describes a mineral that breaks in rough flat/jagged surfaces

    • Jagged

    • Flat

    • Neither

    • Both

    Correct Answer
    A. Jagged
    Explanation
    The term "fracture" refers to the way a mineral breaks. If a mineral has a jagged fracture, it means that it breaks into rough and uneven surfaces with sharp edges. In contrast, a flat fracture would mean that the mineral breaks into smooth and even surfaces. The term "neither" suggests that the mineral does not break in either a jagged or flat manner, which is not the case here. Therefore, the correct answer is "jagged" as it accurately describes the rough and uneven surfaces that result from the fracture of the mineral.

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  • 4. 

    Sedimentary Rocks are formed from the processes of...

    • Compactation & Cementation

    • Melting & Solidification

    • Heat & Pressure

    Correct Answer
    A. Compactation & Cementation
    Explanation
    Sedimentary rocks are formed from the processes of compactation and cementation. Compactation refers to the process in which layers of sediment are compressed by the weight of overlying layers, causing the sediments to become more tightly packed. Cementation, on the other hand, involves the binding of sediment particles together by minerals that are dissolved in water and then deposited between the particles. These two processes work together to transform loose sediments into solid rocks over time.

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  • 5. 

    True or False: The factor that determine's a mineral physical characteristcs is based upon the internal arrangement of atoms.

    • True

    • False

    • Neither

    Correct Answer
    A. True
    Explanation
    The physical characteristics of a mineral are determined by the internal arrangement of atoms. This is because the arrangement of atoms affects properties such as crystal structure, hardness, cleavage, and color. For example, minerals with a regular, repeating atomic arrangement tend to have well-defined crystal shapes, while minerals with a disordered arrangement may have a more amorphous or irregular structure. Therefore, the internal arrangement of atoms is a key factor in determining a mineral's physical characteristics.

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  • 6. 

    Is Olivine nonmetallic or metallic?

    • Nonmetallic

    • Neither

    • Metallic

    Correct Answer
    A. Nonmetallic
    Explanation
    Olivine is a mineral that is composed of magnesium, iron, and silicate. It is classified as nonmetallic because it does not possess the characteristics of a metal. Nonmetallic minerals are typically brittle, have low electrical conductivity, and do not reflect light like metals do. Olivine has a glassy appearance and is commonly found in igneous rocks. Its nonmetallic nature makes it useful in various applications such as in the manufacturing of refractory bricks and as a gemstone.

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  • 7. 

    What is the difference between monominerallic and polyminerallic?

    • Monominerallic has more than one mineral, when Polyminerallic has only one mineral.

    • Monominerallic has more than one rock, when Polyminerallic has only one rock

    • Monominerallic has only one mineral, when Polyminerallic has more than one mineral

    • Monominerallic has only one rock, when Polyminerallic has more than one rock

    Correct Answer
    A. Monominerallic has only one mineral, when Polyminerallic has more than one mineral
    Explanation
    Monominerallic refers to a substance that contains only one mineral, while polyminerallic refers to a substance that contains more than one mineral. This means that monominerallic substances are composed of a single type of mineral, while polyminerallic substances are composed of multiple types of minerals.

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  • 8. 

    Igneous rocks are formed from the processes of...

    • Compactation & Cementation

    • Melting & Solidification

    • Heat & Pressure

    Correct Answer
    A. Melting & Solidification
    Explanation
    Igneous rocks are formed from the processes of melting and solidification. This means that these rocks are created when molten material, such as magma or lava, cools and hardens. The melting of rocks occurs due to high temperatures, often caused by volcanic activity or the movement of tectonic plates. As the molten material cools, it solidifies and forms igneous rocks. This process can take place both beneath the Earth's surface, forming intrusive igneous rocks, and on the surface, forming extrusive igneous rocks.

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  • 9. 

    If igneous rocks have small crystals due to the rate of cooling was faster, then it would be an extrusive/intrusive rock

    • Intrusive

    • Extrusive

    • Neither

    Correct Answer
    A. Extrusive
    Explanation
    If igneous rocks have small crystals, it suggests that the rate of cooling was faster. When magma cools rapidly on or near the Earth's surface, it solidifies quickly, resulting in the formation of extrusive rocks. These rocks have smaller crystals because there was less time for the crystals to grow. Therefore, the correct answer is Extrusive.

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  • 10. 

    Can flurorite scratch a penny?

    • Yes

    • No

    Correct Answer
    A. Yes
    Explanation
    Fluorite is a mineral that has a hardness of 4 on the Mohs scale, while a penny has a hardness of 3.5. According to the scale, a mineral can scratch any substance that is lower on the scale. Since fluorite is harder than a penny, it can scratch it. Therefore, the correct answer is "Yes".

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  • 11. 

    What is double refraction?

    • The ability of a mineral to display one image

    • The ability of a rock to display one image

    • The ability of a rock to display two images

    • The ability of a mineral to display two images

    Correct Answer
    A. The ability of a mineral to display two images
    Explanation
    Double refraction is the phenomenon in which a mineral has the ability to split a single incident light ray into two separate rays, each with a different polarization. This occurs due to the anisotropic nature of the mineral's crystal structure, which causes the light to travel at different speeds in different directions. As a result, when light passes through the mineral, it is split into two separate rays, each following a different path and resulting in the display of two images.

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  • 12. 

    Cleavage: Describes the way a mineral breaks in clean, smooth + flat/jagged surfaces

    • Jagged

    • Flat

    • Neither

    • Both

    Correct Answer
    A. Flat
    Explanation
    When a mineral breaks in flat surfaces, it is referred to as cleavage. Cleavage can occur in different ways, including flat, smooth surfaces. Therefore, the correct answer is "flat."

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  • 13. 

    Metamorphic Rocks form from pre-existing _____ rocks

    • Igneous

    • Sedimentary

    • Both

    • Neither

    Correct Answer
    A. Both
    Explanation
    Metamorphic rocks form from pre-existing rocks, which can be either igneous or sedimentary. During the process of metamorphism, these rocks undergo intense heat, pressure, and chemical changes, causing them to transform into new rocks. Igneous rocks are formed from the solidification of molten material, while sedimentary rocks are formed from the accumulation and lithification of sediments. Therefore, both types of rocks can serve as the precursor for the formation of metamorphic rocks.

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  • 14. 

    YOWhat are the 5 must be's in order to be a mineral?

    Correct Answer
    constant composition
    solid
    crystalline shape
    inorganic
    natural
    Explanation
    To be classified as a mineral, five criteria must be met. The first criterion is constant composition, meaning that a mineral must have a specific chemical formula and consistent proportions of elements. The second criterion is that it must be a solid, as minerals cannot be in a liquid or gaseous state. The third criterion is a crystalline shape, which refers to the regular and repeating pattern of atoms or ions in a mineral's structure. The fourth criterion is that it must be inorganic, meaning it is not formed by living organisms. Lastly, a mineral must occur naturally, meaning it is not human-made.

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  • 15. 

    The acid test is useful for a mineral that contains....

    • Silicates

    • Iron

    • Aluminum

    • Magnesium

    • Calcium

    Correct Answer
    A. Calcium
    Explanation
    The acid test is useful for a mineral that contains calcium because calcium reacts with acid to produce effervescence or bubbling. This reaction occurs due to the release of carbon dioxide gas when calcium carbonate, which is commonly found in minerals, reacts with acid. By observing the presence of effervescence, one can determine the presence of calcium in the mineral.

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  • 16. 

    Gneiss is the only rock that shows...

    • Foilation

    • Non-foilation

    • Vesicular pockets

    • Banding

    Correct Answer
    A. Banding
    Explanation
    Gneiss is a type of metamorphic rock that is characterized by its distinct banding pattern. This banding is caused by the alternating layers of different minerals within the rock, which gives it a striped appearance. Other rocks may exhibit foliation, non-foliation, or vesicular pockets, but only gneiss is known for its unique banding feature.

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  • 17. 

    List in order from smallest to largest the following particles: silt, cobbles, clay, pebbles and sand

    Correct Answer
    clay
    silt
    sand
    pebbles
    cobbles
    Explanation
    The given answer correctly lists the particles in order from smallest to largest. Clay particles are the smallest, followed by silt, sand, pebbles, and finally cobbles, which are the largest particles.

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  • 18. 

    State at least 1 reason why Color is not a great mineral ID test?

    Correct Answer
    not as accurate
    same color
    minerals may have same color
    Explanation
    Color is not a great mineral ID test because it is not as accurate and reliable. Many minerals can have the same color, making it difficult to differentiate them based on this characteristic alone. Therefore, relying solely on color can lead to misidentification of minerals.

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  • 19. 

    Olivine: cleavage/fractureSulfur: cleavage/fractureBiotite Mica:cleavage/fractureCalcite: cleavage/fractureHalite: cleavage/ fractureQuartz: cleavage/ fracture***For answer, put in the form of: Quartz= _______***

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  • Current Version
  • Sep 17, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 27, 2010
    Quiz Created by
    Danniiieelllee
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