Understanding Air and Wind
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Questions and Answers

What is the name for the moving air that we can feel?

  • Breeze (correct)
  • Gale
  • Mist
  • Fog
  • When air is heated, what happens to it?

  • It expands and rises (correct)
  • It contracts and shrinks
  • It becomes lighter
  • It becomes denser
  • What happens to the balloon placed over a test tube in ice?

  • It remains the same
  • It shrinks (correct)
  • It expands
  • It pops
  • What do the water droplets on the outer surface of a cold water bottle indicate?

    <p>The presence of water vapor in the air</p> Signup and view all the answers

    What causes lime water to turn milky when air is blown through it?

    <p>Presence of carbon dioxide in the air</p> Signup and view all the answers

    What supports burning and is essential for all living organisms?

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

    What is responsible for making an air-filled ball grow in size when inflated?

    <p>Air occupying space</p> Signup and view all the answers

    What can be inferred from the behavior of two test tubes with balloons in hot water and ice?

    <p>Air expands and rises when heated, while it contracts when cooled</p> Signup and view all the answers

    What happens when a torch light is put on in a dark place?

    <p>Tiny shining particles appear in the beam of torch light which are dust particles present in the air.</p> Signup and view all the answers

    What is responsible for inflating the balloon placed over one test tube when it is submerged in hot water?

    <p>The hot water heats the air inside, causing it to expand and inflate the balloon.</p> Signup and view all the answers

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