Activity 1.1: Nature of Matter
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Questions and Answers

What is the fundamental characteristic of matter that is observed in everything around us?

  • It has neither mass nor volume
  • It has only volume
  • It has both mass and volume (correct)
  • It has only mass

    • What did ancient Indian philosophers believe that everything was made up of?

  • The five basic elements - Panch Tatva (correct)
  • Four basic elements
  • Six basic elements
  • Ten basic elements

    • What is the classification of matter based on, according to modern day scientists?

  • Neither physical properties nor chemical nature
  • Only physical properties
  • Only chemical nature
  • Both physical properties and chemical nature (correct)

    • What was the difference in the two schools of thought regarding the nature of matter?

    <p>One believed matter was continuous, the other believed it was made up of particles</p> Signup and view all the answers

    What will be discussed in subsequent chapters?

    <p>Chemical nature of matter</p> Signup and view all the answers

    What is the term used to describe the amount of space occupied by an object?

    <p>Volume</p> Signup and view all the answers

    What is the primary reason why a sponge can be compressed?

    <p>Because it has minute holes with trapped air</p> Signup and view all the answers

    Which of the following is NOT a characteristic of the particles of a solid?

    <p>Random motion</p> Signup and view all the answers

    What is the primary reason why we can smell hot sizzling food from a distance, but not cold food?

    <p>The particles of hot food are more energetic</p> Signup and view all the answers

    What is the common characteristic of a chair, almonds, and lemon water?

    <p>They are all matter</p> Signup and view all the answers

    Which property of matter does a diver's ability to cut through water in a swimming pool demonstrate?

    <p>Density</p> Signup and view all the answers

    What is the shape of a sugar or salt crystal?

    <p>Fixed</p> Signup and view all the answers

    What happens to the salt/sugar particles when it dissolves in water?

    <p>It spreads throughout the water</p> Signup and view all the answers

    What is the SI unit of mass?

    <p>Kilogram (kg)</p> Signup and view all the answers

    What is the purpose of Activity 1.2?

    <p>To demonstrate that particles of matter are extremely small</p> Signup and view all the answers

    What is observed when potassium permanganate crystals are dissolved in water?

    <p>The solution remains coloured even after dilution</p> Signup and view all the answers

    What is the purpose of Activity 1.3?

    <p>To demonstrate that particles of matter are continuously moving</p> Signup and view all the answers

    What is the relationship between 1L and 1 dm3 in terms of volume?

    <p>1L is equal to 1 dm3</p> Signup and view all the answers

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