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Mixture and solution

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  • By what can we use to remove iron filings?
    We can use a magnet.
  • We can use magnet to remove sand. (Yes or No)
    No. We use the filter.
  • Is this a mixture or solution?
    This is a mixture of sand and water.
  • Soda is a solution of water and carbon dioxide. (Yes or No)
    Yes.
  • Air is a mixture of gases including nitrogen, oxygen and many other gases. (Yes or No)
    Yes
  • Is this a solution?
    No, it is a mixture of rock, sand and water.
  • Is this a solution?
    No, it is a mixture of oil and water.
  • Is rice soluble?
    No, it is insoluble.
  • How many kinds of substances are there?
    There are 2: soluble and insoluble substances.
  • Is sugar insoluble?
    No, it is soluble.
  • Is this a mixture or solution?
    This is a solution of salt and water.
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