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Class 6 Exam  >  Class 6 Tests  >  Important Questions Test: Materials Around Us - Class 6 MCQ

Important Questions Test: Materials Around Us - Class 6 MCQ


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15 Questions MCQ Test - Important Questions Test: Materials Around Us

Important Questions Test: Materials Around Us for Class 6 2025 is part of Class 6 preparation. The Important Questions Test: Materials Around Us questions and answers have been prepared according to the Class 6 exam syllabus.The Important Questions Test: Materials Around Us MCQs are made for Class 6 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Important Questions Test: Materials Around Us below.
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Important Questions Test: Materials Around Us - Question 1
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Why are different objects made of different materials?

Detailed Solution for Important Questions Test: Materials Around Us - Question 1
Different materials have unique properties that determine their suitability for different objects. For example, glass is used for windows due to its transparency, while metal is used for vehicles because of its strength.
Important Questions Test: Materials Around Us - Question 2
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Which property of glass makes it suitable for windows?

Detailed Solution for Important Questions Test: Materials Around Us - Question 2
Glass is transparent, allowing light to pass through, making it ideal for windows.
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Important Questions Test: Materials Around Us - Question 3
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What was the primary material used for making pottery in ancient India?

Detailed Solution for Important Questions Test: Materials Around Us - Question 3
Ancient Indian pottery was primarily made of clay, which was shaped and baked in kilns to create durable terracotta pots.
Important Questions Test: Materials Around Us - Question 4
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What is the process of grouping objects based on common properties called?
Detailed Solution for Important Questions Test: Materials Around Us - Question 4
- Classification is the process of organizing objects or materials based on shared characteristics.
- It helps in identifying similarities and differences among items, making it easier to study and understand them.
- Common properties used in classification include hardness, texture, color, and size.
- This method is essential in various fields, such as biology for categorizing species, and materials science for grouping substances.
- Ultimately, classification simplifies complex information, aiding in better decision-making and analysis.
Important Questions Test: Materials Around Us - Question 5
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Which of the following is an example of a soft material?
Detailed Solution for Important Questions Test: Materials Around Us - Question 5
Cotton is soft and can be easily compressed, unlike iron, wood, or glass.
Important Questions Test: Materials Around Us - Question 6
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Which type of materials allow light to pass through them clearly?
Detailed Solution for Important Questions Test: Materials Around Us - Question 6
  • Transparent materials allow light to pass through them completely, so you can see objects clearly through them. Examples include clear glass, clean water, and some plastics.
  • Translucent materials allow only some light to pass through, so objects on the other side appear blurry or unclear. Examples include frosted glass and wax paper.
  • Opaque materials do not allow any light to pass through, so you cannot see through them at all. Examples include wood, metal, and stone.
  • Flexible describes a material’s ability to bend or stretch; it does not relate to how it transmits light.
Important Questions Test: Materials Around Us - Question 7
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Which of these is a lustrous material?
Detailed Solution for Important Questions Test: Materials Around Us - Question 7
- Lustrous materials are those that reflect light well, giving them a shiny appearance.
- Among the options, iron is a metal, which typically possesses this shiny quality due to its smooth surface.
- In contrast, wood, rubber, and paper do not have this reflective characteristic; they appear dull or matte.
- Therefore, iron is the correct choice as a lustrous material, showcasing the typical properties of metals.
Important Questions Test: Materials Around Us - Question 8
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Which of the following is an example of an insoluble material in water?
Detailed Solution for Important Questions Test: Materials Around Us - Question 8
- Sand is a granular material made of small particles that do not dissolve in water.
- When mixed with water, sand remains separate and settles at the bottom instead of forming a solution.
- In contrast, sugar and salt dissolve completely in water, while lemon juice is a liquid that mixes well.
- Thus, sand is classified as an insoluble material, making it the correct answer among the options given.
Important Questions Test: Materials Around Us - Question 9
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Why does oil float on top of the water?
Detailed Solution for Important Questions Test: Materials Around Us - Question 9
  • Oil floats on water because it is less dense. Density is a measure of how much mass is in a given volume.
  • Water has a higher density than oil, which means that for the same volume, water weighs more.
  • When substances of different densities are combined, the less dense substance (oil) will rise to the top.
  • This is why you often see oil forming a layer on top of water instead of mixing.
Important Questions Test: Materials Around Us - Question 10
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What is the standard unit of mass in the International System of Units (SI)?
Detailed Solution for Important Questions Test: Materials Around Us - Question 10
- The standard unit of mass in the International System of Units (SI) is the kilogram (kg).
- It is defined as the mass of a specific platinum-iridium cylinder kept in France.
- The kilogram is used for measuring larger amounts of mass compared to grams.
- Other options like grams and pounds are commonly used in various contexts but are not the SI base units.
- The litre is a unit of volume, not mass.
Important Questions Test: Materials Around Us - Question 11
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Which of these is an incorrect way to write a unit of volume?
Detailed Solution for Important Questions Test: Materials Around Us - Question 11

Volume is measured in units like m3, cm3, mL, or Litre.

  • Option D (500 Kg) is incorrect because kilogram (Kg) measures mass, not volume.

  • Options A (750 mL), B (2 m3), and C (1 Litre) are all correct units of volume.

 

Important Questions Test: Materials Around Us - Question 12
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Which property of a material determines if it is hard or soft?
Detailed Solution for Important Questions Test: Materials Around Us - Question 12
Hard materials resist compression and scratches, whereas soft materials are easily compressed.
Important Questions Test: Materials Around Us - Question 13
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What happens when a soluble material is mixed with water?
Detailed Solution for Important Questions Test: Materials Around Us - Question 13
Soluble materials, like sugar and salt, dissolve completely in water, making them invisible.
Important Questions Test: Materials Around Us - Question 14
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What does mass measure?
Detailed Solution for Important Questions Test: Materials Around Us - Question 14
Mass is the quantity of matter in an object, measured in grams (g) or kilograms (kg).
Important Questions Test: Materials Around Us - Question 15
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Which of the following materials is transparent?
Detailed Solution for Important Questions Test: Materials Around Us - Question 15

Transparent materials allow light to pass through clearly so that objects on the other side can be seen. Glass is transparent, whereas wood, cardboard, and aluminium are opaque and do not let light pass through.

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