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Science 8/9 Midterm

  •  English    63     Public
    BC Curriculum: Cells Unit and Chemistry Unit
  •   Study   Slideshow
  • Salt water is an example of what type of mixture? Homogenous or heterogenous?
    Homogenous
  •  15
  • Oxygen is an example of what type of pure substance? Element or compound?
    Element
  •  15
  • A heterogeneous mixture has A) only one component B) at least two components which look like one substance C) at least two visible components D) a uniform distribution of a single phase
    B
  •  25
  • Water is an example of which type of pure substance? Element or compound?
    Compound
  •  15
  • Milk is an example of what type of mixture? Homogenous or heterogenous?
    Homogenous
  •  15
  • A nail rusting is an example of a chemical or physical change?
    chemical
  •  15
  • Alcohol evaporates is an example of a chemical or physical change?
    physical
  •  15
  • Food is digested. Is this an example of a chemical or physical change?
    chemical
  •  15
  • Blow drying wet hair is an example of chemical or physical change?
    physical
  •  15
  • Nitrogen is an example of what type of pure substance? compound or element?
    element
  •  15
  • What does this symbol represent?
    corrosive material
  •  20
  • True or false: when you are done with a chemical, you should immediately pour it down the sink.
    False
  •  15
  • True or false: It is okay to smell a substance as long as the teacher gives permission.
    True
  •  15
  • Baking soda and vinegar make carbon dioxide. Physical or chemical change?
    chemical
  •  15
  • Jello is an example of what type of mixture? Homogenous or heterogenous?
    Homogenous
  •  15
  • Breaking glass. Physical or chemical change?
    physical
  •  15