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McGraw Science Unit F, Chapter 10 Review

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  • What is an example of a solution?
    Soda, Tea, Hot Chocolate, Air, etc.
  • What is a physical change?
    A change in the way matter looks.
  • Is chopping a log an example of a physical or chemical change?
    A physical change.
  • What are the ways chemical changes could be bad?
    Chemical changes can make material weaker and spoiled food could make you sick.
  • What is a chemical change?
    A change that causes a new type of matter to form.
  • How can you seperate a liquid solution (i.e. salt water)?
    By evaporating or boiling the water, leaving only the sugar behind.
  • What is a solution?
    A type of mixture where the different types of matter are mixed evenly into each other.
  • Is melting an example of a physical or chemical change?
    Physical.
  • What are the clues that a chemical change has occured?
    The release of gas, creating light and heat, and a color change.
  • True or False: Freeze means to change something from a liquid to a solid.
    True.
  • True or False: Melting is turning a solid into a liquid.
    True.
  • What is an example of a mixture?
    Cereal, Salad, Clouds, etc.
  • What type of change (physical or chemical) is a mixture?
    A mixture is a physical change.
  • What is a mixture?
    Different kinds of matter mixed together.
  • True or False: Boiling is the same as evaporating.
    False. Both turn liquids to gas, but evaporation takes a longer time and boiling creates bubbles.
  • True or False: Condense it to change from a liquid to a gas.
    False. Condense is to change from a gas to a liquid.
  • Is baking bread an example of a physical or chemical change?
    Chemical.
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