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Practice Test: Sorting Materials Into Groups - Class 6 MCQ


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20 Questions MCQ Test Science Class 6 - Practice Test: Sorting Materials Into Groups

Practice Test: Sorting Materials Into Groups for Class 6 2024 is part of Science Class 6 preparation. The Practice Test: Sorting Materials Into Groups questions and answers have been prepared according to the Class 6 exam syllabus.The Practice Test: Sorting Materials Into Groups MCQs are made for Class 6 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Practice Test: Sorting Materials Into Groups below.
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Practice Test: Sorting Materials Into Groups - Question 1

Which of these materials is not transparent?

Detailed Solution for Practice Test: Sorting Materials Into Groups - Question 1

To determine which material is not transparent:

- Glass: Transparent material that allows light to pass through.
- Water: Transparent substance that allows light to pass through.
- Metal: Not transparent; it doesn't allow light to pass through due to its opaque nature.
- Clear Plastic: Transparent material that permits light to pass through.

Therefore, the correct answer is C: Metal. Metal is not transparent because it is opaque, unlike glass, water, and clear plastic, which are transparent materials.

Practice Test: Sorting Materials Into Groups - Question 2

What characteristic of materials is highlighted by the statement "Materials with a shiny or lustrous appearance are generally metals"?

Detailed Solution for Practice Test: Sorting Materials Into Groups - Question 2

The statement emphasizes the visual appearance as a distinguishing feature of metals. Metals like iron, copper, aluminum, and gold are known for their shiny or lustrous appearance, which is often most noticeable on freshly cut surfaces due to their reflective nature. This characteristic is a result of the way light interacts with the metallic structure, leading to the perception of shine or luster.

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Practice Test: Sorting Materials Into Groups - Question 3

Which of the following pairs correctly matches a soft material with a corresponding example?

Detailed Solution for Practice Test: Sorting Materials Into Groups - Question 3

Explanation:

- Cotton - Sponge
- Cotton is a soft material that is commonly used in clothing and textiles. It is known for its soft and comfortable feel.
- Sponge is also a soft material that is commonly used for cleaning and absorbing liquids. It is known for its soft and squishy texture.
- Therefore, the correct pair matching a soft material with a corresponding example is Cotton - Sponge.

Practice Test: Sorting Materials Into Groups - Question 4

Which of the following materials would likely be classified as a Brittle material?

Detailed Solution for Practice Test: Sorting Materials Into Groups - Question 4

To determine which material is likely classified as brittle:

- Glass (Option C) is the correct answer.

Brittle materials are those that break or shatter without significant deformation when subjected to stress. Glass is a classic example of a brittle material due to its property of breaking into sharp pieces when under stress. In contrast, rubber, plastic, and foam are known for their deformability rather than brittleness, making them unsuitable choices.

Practice Test: Sorting Materials Into Groups - Question 5

What characteristic makes materials like wood, aluminum, and nails susceptible to scratching with a metal key?

Detailed Solution for Practice Test: Sorting Materials Into Groups - Question 5

Materials like wood, aluminum, and nails can get scratched by a metal key because they have low hardness.

Here's a simple way to think about it:

  • Hardness is how tough or strong a material is.
  • If a material is soft (low hardness), it can be easily marked or scratched when something harder, like a metal key, touches it.

So, because wood, aluminum, and nails aren’t very hard, they can be easily scratched by the metal key.

Practice Test: Sorting Materials Into Groups - Question 6

What property distinguishes soft materials from hard materials based on the information provided?

Detailed Solution for Practice Test: Sorting Materials Into Groups - Question 6

Soft materials are characterized by being easily compressible, while hard materials are difficult to compress. For example, soft materials like cotton and sponge can be easily deformed under pressure, whereas hard materials like iron are resistant to compression due to their molecular structure.

Practice Test: Sorting Materials Into Groups - Question 7

What is a distinguishing visual feature that sets wood apart from metals like iron, copper, and aluminum?

Detailed Solution for Practice Test: Sorting Materials Into Groups - Question 7

One of the key visual features that differentiate wood from metals like iron, copper, and aluminum is its natural color and grain pattern. Wood materials exhibit a variety of colors and unique grain patterns that are specific to different types of wood species. This characteristic makes wood visually distinct from metals, which have more uniform and metallic appearances, often characterized by reflective surfaces and specific metallic hues.

Practice Test: Sorting Materials Into Groups - Question 8

Which material property is crucial for distinguishing between wood and metals based on their appearance?

Detailed Solution for Practice Test: Sorting Materials Into Groups - Question 8

Material Property Crucial for Distinguishing between Wood and Metals


  • Hardness:
    - Wood is typically softer compared to metals. Metals are usually harder and more rigid in nature.
    - By assessing the hardness of a material, one can differentiate between wood and metals based on their appearance.

  • Malleability:
    - Metals are malleable, meaning they can be easily shaped or formed without breaking.
    - Wood, on the other hand, is not as malleable as metals.

  • Lustreous:
    - Metals have a characteristic lustrous appearance, often shiny or reflective.
    - Wood, on the other hand, usually has a more matte or dull appearance.

  • All of these:
    - Considering all of these material properties together can help in distinguishing between wood and metals based on their appearance.

By examining the hardness, malleability, and lustrous nature of a material, one can easily differentiate between wood and metals just by their appearance.

Practice Test: Sorting Materials Into Groups - Question 9

What makes the basis of sorting materials into groups?

Detailed Solution for Practice Test: Sorting Materials Into Groups - Question 9

Answer: (c) Both similarities and differences in their properties
Explanation:
Materials are grouped on the basis of similarities and dissimilarities.

Practice Test: Sorting Materials Into Groups - Question 10

Why do lighter materials like paper, leaves, and wood float on the surface of water while heavier objects like those made from iron sink in water?

Detailed Solution for Practice Test: Sorting Materials Into Groups - Question 10

Lighter materials like paper, leaves, and wood float on water because they are less dense than water. This means that they weigh less per unit of volume compared to water, allowing them to float. Understanding the concept of density helps explain why certain objects float while others sink.

Practice Test: Sorting Materials Into Groups - Question 11

Which of the following materials is an example of a transparent material?

Detailed Solution for Practice Test: Sorting Materials Into Groups - Question 11

Glass is an example of a transparent material because it allows light to pass through it. Transparency refers to the property of a material that enables light to travel through it with minimal obstruction. This property is why glass is commonly used for windows and in various optical instruments.

Practice Test: Sorting Materials Into Groups - Question 12

What characteristic defines a substance as soluble in water?

Detailed Solution for Practice Test: Sorting Materials Into Groups - Question 12

A substance is considered soluble in water if it completely dissolves or vanishes in water. This property is crucial for various chemical reactions and processes. One interesting fact is that water's ability to dissolve a wide range of substances is essential for life, as it enables the transportation of nutrients and waste within living organisms.

Practice Test: Sorting Materials Into Groups - Question 13

Why do shopkeepers use transparent containers for biscuits, sweets, and other eatables?

Detailed Solution for Practice Test: Sorting Materials Into Groups - Question 13

Shopkeepers use transparent containers for biscuits, sweets, and other eatables so that buyers can easily see them. This practice helps in showcasing the products to customers, allowing them to view the items clearly without the need to open the containers. It can attract customers and make the products more appealing.

Practice Test: Sorting Materials Into Groups - Question 14

Which of the following materials is classified as translucent?

Detailed Solution for Practice Test: Sorting Materials Into Groups - Question 14

Butter paper is an example of a translucent material because it allows light to pass through it partially. Translucent materials permit some light to travel through them but diffuse it in the process, resulting in a blurred or softened image on the other side. Butter paper, with its semi-transparent nature, serves various practical purposes in everyday use.

Practice Test: Sorting Materials Into Groups - Question 15

Which object shines?

Detailed Solution for Practice Test: Sorting Materials Into Groups - Question 15

Steel spoon is a metallic object while all others are non-metals.

Practice Test: Sorting Materials Into Groups - Question 16

Choose the opaque object from the following:

Detailed Solution for Practice Test: Sorting Materials Into Groups - Question 16

Except charcoal, all the three will allow the light to pass.

Practice Test: Sorting Materials Into Groups - Question 17

Which is a set of transparent materials?

Detailed Solution for Practice Test: Sorting Materials Into Groups - Question 17

Glass, air and water, all are transparent.

Practice Test: Sorting Materials Into Groups - Question 18

Purpose of sorting material into groups is

Detailed Solution for Practice Test: Sorting Materials Into Groups - Question 18

Materials are grouped for our convenience and to study their properties.

Practice Test: Sorting Materials Into Groups - Question 19

An oily thin paper sheet will be

Detailed Solution for Practice Test: Sorting Materials Into Groups - Question 19

Only a part of light passes through it.

Practice Test: Sorting Materials Into Groups - Question 20

Which one will show a metallic lustre?

Detailed Solution for Practice Test: Sorting Materials Into Groups - Question 20

Silver is an excellent luster material, often used in various applications due to its high reflectivity and bright, metallic shine.

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