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Pure Substances and Mixtures

Quiz by WENDY OLIVER

Grade 6
Science (2021)
Texas Essential Knowledge and Skills (TEKS)

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10 questions
Show answers
  • Q1
    What is a defining characteristic of a pure substance?
    It can be separated into components by physical means.
    It has a fixed composition and definite properties.
    It consists of visibly different parts.
    It is always a liquid.
    30s
    SCI.6.6B
  • Q2
    In which type of mixture are the different components easily seen and separated?
    Solution
    Pure substance
    Heterogeneous mixture
    Homogeneous mixture
    30s
    SCI.6.6B
  • Q3
    Which of the following is an example of a homogeneous mixture?
    Sand and iron filings
    Sugar dissolved in water
    Granola bar
    Oil and water
    30s
    SCI.6.6B
  • Q4
    Which statement best describes a solution?
    A solution is a mixture with easily visible components.
    A solution consists of two or more substances mixed but not dissolved.
    A solution is a homogeneous mixture where one substance is dissolved in another.
    A solution is a pure substance with a fixed composition.
    30s
    SCI.6.6B
  • Q5
    Which of the following is a characteristic of heterogeneous mixtures?
    They consist of only one type of atom.
    They have a uniform composition throughout.
    The components are chemically bonded together.
    The components can often be seen and separated easily.
    30s
    SCI.6.6B
  • Q6
    Which of the following describes a pure substance?
    It can be separated by physical processes.
    It has a uniform and definite composition.
    It has visible different parts under a microscope.
    It consists of multiple substances mixed together.
    30s
    SCI.6.6B
  • Q7
    What type of mixture is air classified as?
    Heterogeneous mixture
    Pure substance
    Compound
    Homogeneous mixture
    30s
    SCI.6.6B
  • Q8
    Which of the following is NOT a characteristic of homogeneous mixtures?
    The components remain visibly separate.
    The mixture is uniform throughout.
    The composition is the same throughout the sample.
    The substances are evenly distributed.
    30s
    SCI.6.6B
  • Q9
    Which of the following is an example of a pure substance?
    Trail mix
    Mud
    Saltwater
    Distilled water
    30s
    SCI.6.6B
  • Q10
    Which mixture is an example of a heterogeneous mixture?
    Saltwater
    Pizza
    Vinegar
    Tea
    30s
    SCI.6.6B

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