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Substances

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  • Which among of these is a pure substance? soda, milk, sugar, salt solution
    sugar
  • How will you separate the mixture of sugar, iron fillings and marbles?
    1. Use magnet to separate the metal from the mixture.   2. Using a sieve, sift the sugar and marbles. 
  • What method will you use if you want to obtain refined crude oil?
    Use the distillation method where the mixture with different boiling point will be heated.
  • Find and show 2 examples of homogenous mixture.
    any
  • Which is a pure substance? baking soda or soda
    baking soda
  • True or False. Solutions are homogenous mixtures.
    True
  • Show 1 mixture that you have from your house.
    any
  • Think of a pure substance. Just describe it to your group, then let your group mates guess what it is.
    any
  • This set up refers to which method of separating mixture?
    filtration
  • The picture shows the set up for _____ method of separating the mixture.
    distillation
  • In order to separate the oil and water, an apparatus called____ is used.
    separating funnel
  • Explain what will you do to separate the mixture of salt, sand and water.
    Using sedimentation method or filtration method to remove the sand. Then use distillation process to obtain the pure water from the salt solution.
  • Give an example of a mixture that can be separated by magnet.
    any
  • True or False. Suspensions are heterogenous mixtures.
    True
  • True or false. Centrifugal technique is used to separate the mixture with different boiling points.
    false
  • How will you separate the mixture of flour?
    Use the filtration method. Pour the mixture gradually into the container with cloth or or filter paper
  • Which method will you use to separate the sugar from sugar solution?
    evaporation
  • What will you do to separate the sand and gravel?
    Use sieve to separate the sand from gravel