The Invisible World of Matter
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Questions and Answers

Which of the following statements about particles is true?

  • Particles are larger than the width of a human hair.
  • Particles are too small to be measured.
  • Particles are visible to the naked eye.
  • Particles are smaller than the width of a human hair. (correct)
  • What is the definition of matter?

  • Anything that is visible.
  • Anything that takes up space.
  • Anything that has weight and takes up space. (correct)
  • Anything that has weight.
  • In which state of matter do particles move freely around and take the shape of their containers?

  • Plasma
  • Liquid
  • Gas (correct)
  • Solid
  • Why does a balloon seem to lose air on a cold day?

    <p>The gas particles slow down and move closer together.</p> Signup and view all the answers

    What happens to a balloon when it is put in a warm area after being outside on a cold day?

    <p>The balloon expands and becomes bigger.</p> Signup and view all the answers

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