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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 8

Explain the Meaning of the Term ‘Matter’.

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प्रश्न

Explain the meaning of the term ‘matter’.

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उत्तर

The matter is defined as anything that has mass, occupies space, and can be felt by the senses.

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पाठ 1: Matter - Exercises

संबंधित प्रश्‍न

Fill in the blank :

The substances which can flow are called ________


Which of the following materials fall in the category of a “pure substance”?

  1. Ice
  2. Milk
  3. Iron
  4. Hydrochloric Acid
  5. Calcium oxide
  6. Mercury
  7. Brick
  8. Wood
  9. Air

Name a non-metal which is a good conductor of electricity.


State one property in which a solution of sugar in water resembles a mixture of sugar and sand, and one property in which it differs from it.


Which of  the following are compounds ?

  1. CO
  2. No
  3. NO
  4. Co

A solution contains 5.6 mL of alcohol mixed with 75 mL of water. Calculate the concentration of this solution.


Which of the following contains less solute at a given temperature and pressure ? Unsaturated solution or Saturated solution.


Which of the following are chemical changes and which physical ? Give reason.

  1. a glass bottle breaking
  2. coal burning in air
  3. making a cake
  4. wool being knitted into a sweater

What is a colloid ? Give two examples of colloids (or colloidal solutions)


How would you prepare a saturated solution of sodium chloride in water at 25°C ? What will happen if this  solution is cooled to 10°C ?


Name the process by which common salt is purified.


Which technique can be used to detect and identify traces of poison present in the stomach wash of a person ?


How will you separate a mixture of iron filings and powdered carbon ?


Naphthalene can be separated from sand :


Tincture of iodine is a mixture of two materials X and Y. The material Y has a property that its solid form can be converted directly into vapours on heating by a process called Z.

  1. What could X be ?
  2. What could Y be ?
  3. Name the process Z.
  4. Which process would you use to recover both the components X and Y from tincture of iodine ?
  5. Which process can be used to recover only component Y from tincture of iodine ?

Explain the meaning of the term matter with special reference to the term ‘substance’.


Wipe the board with a duster and then tap the duster against the table. What do you see?


You want to wear your favourite shirt to a party, but the problem is that it is still wet after a wash. What steps would you take to dry it faster?


Define the term matter.


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