Dust (by Katie)

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Dust (by Katie)

  1. 1. Where does dust come from ? By: Katie
  2. 2. About Dust <ul><li>Dust is a general name for minute solid particles with diameters less than 500 micrometers. </li></ul><ul><li>Dust is lifted by wind, volcanic eruptions and pollution </li></ul><ul><li>It is estimated that humans lose 30,000 – 40,000 dead skin cells each and every minute. </li></ul>
  3. 3. Photo This is a picture of a dust storm in Texas
  4. 4. Where does dust come from ? <ul><li>Furniture's fabric, bedding and clothes release fibers every time they are used. </li></ul><ul><li>Pets like cats also contribute to house dust by shedding skin cells and hair. </li></ul>Extra Fact Our school uses carpet and Whenever we use it More fibers come out That is why we have so much Dust in school !!
  5. 5. Thank you for watching Pictures from: Google Information from: http://www.wisegeek.com/where-does-dust-come-from.htm

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