8th Grade Physical And Chemical Changes Quiz

Reviewed by Zohra Sattar Waxali
Zohra Sattar Waxali, PhD (Chemistry) |
Chemistry
Review Board Member
Dr. Zohra Sattar Waxali earned her doctorate in chemistry and biochemistry from Northwestern University, specializing in the metallomes of cardiac cells and stem cells, and their impact on biological function. Her research encompasses the development of arsenoplatin chemotherapeutics, stapled peptide estrogen receptor inhibitors, and antimicrobial natural products.
 , PhD (Chemistry)
By G1969
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G1969
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  • 1/10 Questions

    Elements in the periodic table are arranged according to increasing atomic number.

    • True
    • False
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About This Quiz

Welcome to the 8th Grade Physical and Chemical Changes Quiz! This engaging assessment will test your understanding of the fundamental concepts surrounding physical and chemical changes in matter. Explore a diverse range of questions that challenge your knowledge about the distinction between physical and chemical changes. This quiz will also examine your grasp of various properties of matter, such as intensive and extensive properties. Through multiple-choice questions, you'll demonstrate your ability to distinguish between these key attributes and understand their significance in the world of science. This quiz will evaluate your knowledge and enhance your comprehension of the dynamic changes that occur in the substances around us. Good luck!

8th Grade Physical And Chemical Changes Quiz - Quiz

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  • 2. 

    The physical form in which a substance exists, such as a solid, liquid or gas is called a:

    • Density

    • Thermal conductivity

    • State

    • Identity

    Correct Answer
    A. State
    Explanation
    The correct answer is "State." The physical form in which a substance exists, such as a solid, liquid, or gas, is referred to as its state. This refers to the arrangement and movement of particles in the substance.

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  • 3. 

    Which property of matter is described as the amount of space an object occupies?

    • Density

    • Melting point

    • Volume

    • Reactivity

    Correct Answer
    A. Volume
    Explanation
    The property of matter described as the amount of space an object occupies is called "volume." Volume represents the three-dimensional extent of an object or substance and is a fundamental characteristic used to quantify its physical size or capacity.

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  • 4. 

    Which of the following is an example of a chemical change?

    • Freezing water into ice cubes

    • Dissolving salt in water

    • Burning a piece of wood

    • Mixing oil and vinegar

    Correct Answer
    A. Burning a piece of wood
    Explanation
    Burning a piece of wood involves a chemical change because the complex organic molecules in the wood undergo a reaction with oxygen, leading to the release of heat, light, and the formation of new substances like ash and smoke. This transformation alters the chemical composition of the wood, distinguishing it from a simple physical change.

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  • 5. 

    Rusting is a common phenomenon observed in iron objects left exposed to moisture and air. Is rusting a physical change or a chemical change?

    • Physical change

    • Chemical change

    • Neither

    • Both

    Correct Answer
    A. Chemical change
    Explanation
    Rusting is a chemical change that occurs when iron reacts with oxygen and moisture in the presence of air, forming iron oxide, commonly known as rust. This process involves the rearrangement of atoms and the creation of new substances, resulting in a change in the composition and properties of the original material.

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  • 6. 

    A piece of paper burns when exposed to an open flame. Is this an example of a physical change or a chemical change? 

    • Physical change

    • Chemical change

    • Neither

    • Both

    Correct Answer
    A. Chemical change
    Explanation
    Burning paper involves the transformation of its chemical composition through a process of combustion, resulting in the formation of new substances like ash, smoke, and gasses, which classifies it as a chemical change.

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  • 7. 

    The ability to be drawn or pulled into a wire is what physical property?

    • Ductility

    • Malleability 

    • Conductivity

    • Inductivity

    Correct Answer
    A. Ductility
    Explanation
    Ductility is the property of a material that allows it to be stretched or drawn into thin wires without breaking. This characteristic is often observed in metals like gold and copper.

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  • 8. 

    The ability to be pounded into thin sheets is called _________ 

    Correct Answer
    Malleability
    Explanation
    Malleability refers to the property of a material to be easily pounded or hammered into thin sheets without breaking or cracking. It is a characteristic commonly found in metals, such as gold and aluminum, which can be shaped into various forms and structures. This property is essential in various industries, including construction, manufacturing, and jewelry making.

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  • 9. 

    The ability to transfer thermal energy from one area to another is called _______

    Correct Answer
    thermal conductivity
    Explanation
    Thermal conductivity refers to the ability of a material to transfer thermal energy from one area to another. It is a measure of how well a material can conduct heat. Materials with high thermal conductivity can transfer heat quickly, while those with low thermal conductivity transfer heat slowly. This property is important in various applications, such as in the design of insulation materials or in the selection of materials for heat exchangers.

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  • 10. 

    Explain the physical property of solubility.

Zohra Sattar Waxali |PhD (Chemistry) |
Chemistry
Dr. Zohra Sattar Waxali earned her doctorate in chemistry and biochemistry from Northwestern University, specializing in the metallomes of cardiac cells and stem cells, and their impact on biological function. Her research encompasses the development of arsenoplatin chemotherapeutics, stapled peptide estrogen receptor inhibitors, and antimicrobial natural products.

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  • Oct 21, 2024
    Quiz Edited by
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    Expert Reviewed by
    Zohra Sattar Waxali
  • Sep 09, 2009
    Quiz Created by
    G1969
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