Sorting Materials Into Groups

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| By Bhavani Mahendran
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Bhavani Mahendran
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Quizzes Created: 1 | Total Attempts: 2,155
| Attempts: 2,156
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  • 1/10 Questions

    Soft substances are easy to scratch

    • True
    • False
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About This Quiz

Explore the properties of materials with this interactive quiz titled 'Sorting materials into groups. ' Assess your knowledge on how materials react when exposed to different environments, distinguish between metals and non-metals, and identify opaque substances. Ideal for learners interested in basic material science.

Sorting Materials Into Groups - Quiz

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  • 2. 

    _____________is a gas that dissolves in water and is important for marine life.

    Explanation
    Oxygen is a gas that dissolves in water and is important for marine life. Marine organisms rely on dissolved oxygen in water for respiration, just like terrestrial organisms rely on oxygen in the air. It is essential for the survival of aquatic organisms, as it is involved in various biochemical processes, including cellular respiration. Oxygen levels in water can fluctuate due to factors such as temperature, salinity, and photosynthesis. Therefore, maintaining adequate dissolved oxygen levels is crucial for the health and well-being of marine ecosystems.

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  • 3. 

    Boojho found a bag containing the following materials (i) Mirror (ii) Paper stained with oil (iii) Magnet (iv) Glass spectacles Help Boojho in finding out the material(s) which is/are opaque.

    • (a) (i) only

    • (b) (iv) only

    • (c) (i) and (iii)

    • (d) (ii) and (iv)

    Correct Answer
    A. (c) (i) and (iii)
    Explanation
    The materials that are opaque do not allow light to pass through them. In this case, the mirror and the magnet are the opaque materials, as they do not allow light to pass through them. The paper stained with oil and the glass spectacles are not opaque, as they allow some light to pass through them. Therefore, the correct answer is (c) (i) and (iii).

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  • 4. 

    Which type of the following materials is used for making the front glass (wind screen) of a car?

    • (a) Transparent

    • (b) Translucent

    • (c) Opaque

    • (d) All the above

    Correct Answer
    A. (a) Transparent
    Explanation
    Transparent materials are used for making the front glass (windscreen) of a car. This is because transparent materials allow light to pass through them without scattering, making it easier for the driver to see through the glass. Translucent materials allow some light to pass through but scatter it, while opaque materials do not allow any light to pass through. Since the front glass of a car needs to provide clear visibility, it is made from transparent materials.

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  • 5. 

    Which among the following are commonly used for making a safety pin?

    • (a) Wood and glass

    • (b) Plastic and glass

    • (c) Leather and plastic

    • Steel and plastic

    Correct Answer
    A. Steel and plastic
    Explanation
    Safety pins are commonly made using steel and plastic. Steel is used for the pin itself as it provides strength and durability. Plastic is used for the head of the safety pin, which is the part that is held and manipulated. Plastic is lightweight, inexpensive, and easy to mold into different shapes, making it suitable for the head of the safety pin.

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  • 6. 

    An iron nail is kept in each of the following liquids. In which case would it lose its shine and appear dull?

    • (a) Mustard oil

    • (b) Soft drink

    • (c) Coconut oil

    • (d) Kerosene

    Correct Answer
    A. (b) Soft drink
    Explanation
    Soft drinks contain carbonic acid, which can react with the iron in the nail and cause it to lose its shine and appear dull. This reaction is known as corrosion. Mustard oil, coconut oil, and kerosene do not contain any acidic components that can react with the iron, so the nail would not lose its shine in those liquids.

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  • 7. 

    Mirror is a/an_____________kind of substance (Opaque/Transparent)

    Correct Answer
    Opaque
    Explanation
    Mirror is considered an opaque substance because it does not allow light to pass through it. Instead, it reflects light, creating a clear and distinct image. Opaque substances do not transmit light and therefore do not allow objects to be seen through them.

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  • 8. 

    Which of the following statements is not true?

    • (a) Materials are grouped for convenience.

    • (b) Materials are grouped to study their properties.

    • (c) Materials are grouped for fun.

    • (d) Materials are grouped according to their uses.

    Correct Answer
    A. (c) Materials are grouped for fun.
    Explanation
    The statement that materials are grouped for fun is not true. Materials are typically grouped for convenience, to study their properties, or according to their uses. Grouping materials for fun does not serve any practical purpose or contribute to scientific understanding.

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  • 9. 

    Which of the following is the most appropriate method to distinguish between a metal and a non-metal, considering their physical properties?

    • Test if the material can be cut easily with a knife.

    • Check if the material is attracted to a magnet.

    • Observe if the material is shiny and reflects light.

    • Determine if the material can float in water.

    Correct Answer
    A. Check if the material is attracted to a magnet.
    Explanation
    While several physical properties can help distinguish between metals and non-metals, checking if the material is attracted to a magnet is often a reliable method. Many metals, such as iron, cobalt, and nickel, are magnetic, whereas non-metals are generally not. Other properties like shininess or ability to be cut might also indicate a metal, but they are not as definitive because some non-metals can also exhibit these characteristics. Floating in water is not a distinguishing feature between metals and non-metals.

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  • 10. 

    Which pair of substances among the following would float in a tumbler half filled with water?(one or more correct options are right)

    • (a) Cotton thread, thermocol

    • (b) Feather, thread

    • (c) Pin, oil drops

    • (d) Rubber band, coin

    Correct Answer(s)
    A. (a) Cotton thread, thermocol
    A. (b) Feather, thread
    Explanation
    Cotton thread and thermocol would float in a tumbler half filled with water because both substances have a lower density than water. Feather and thread would also float for the same reason. However, pin and oil drops would sink in water because they have a higher density than water. Similarly, a rubber band and a coin would sink in water because they are denser than water.

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  • Current Version
  • Aug 25, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Jun 04, 2020
    Quiz Created by
    Bhavani Mahendran
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