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Exit Ticket 1/23/2018 7th Grade

Quiz by Laura Waddell

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5 questions
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  • Q1
    A student crushes an aluminum can with a hammer. Which of the following digestive processes is most similar to crushing the can?
    chewing food, a physical change
    decomposing solids, a chemical change
    dissolving solids, a physical change
    absorbing nutrients, a chemical change
    30s
  • Q2
    A digestive enzyme in the stomach breaks starch into sugar. This is an example of a —
    physical change, because sugar is formed by the breakdown of a large substance.
    chemical change, because starch is changed into a different substance.
    chemical change, because starch and sugar are dissolved in the stomach.
    physical change, because starch particles are broken into smaller starch particles.
    30s
  • Q3
    Which of the following is a true statement about grinding during digestion?
    The process of grinding is a chemical change that takes place in the mouth during digestion.
    The process of grinding is a chemical change that takes place in the small intestine during digestion.
    The process of grinding is a physical change that takes place in the small intestine during digestion.
    The process of grinding is a physical change that takes place in the mouth during digestion.
    30s
  • Q4
    All of the following are examples of physical changes that take place in the mouth during digestion EXCEPT —
    when large food particles are broken down into smaller ones by chewing.
    when salt particles dissolve in the saliva.
    when enzymes in saliva begin to break down complex molecules into smaller ones.
    when saliva moistens food particles.
    30s
  • Q5
    A mother places a pacifier into her baby's mouth, the place that digestion first occurs in the digestive tract. Which of the following happens to the pacifier while it is in the baby's mouth?
    chemical changes, only
    physical and chemical changes.
    neither physical nor chemical changes
    physical changes, only
    30s

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