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7.6C Physical vs chemical changes

Quiz by Suzanne Srulowitz

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14 questions
Show answers
  • Q1
    Which of the following statements is true about physical changes?
    They involve chemical reactions.
    They are permanent changes.
    They change the chemical composition.
    They do not create new substances.
    30s
  • Q2
    What occurs during a chemical change?
    The formation of new substances.
    The size of the substance decreases.
    The state of matter changes.
    The substance changes color.
    30s
  • Q3
    Which of the following is an example of a physical change?

    cooking an egg

    Boiling water.
    Burning wood.
    Baking a cake.
    30s
  • Q4
    When ice melts into water, what type of change is occurring?
    Nuclear change.
    Biological change.
    Chemical change.
    Physical change.
    30s
  • Q5
    What is a sign that a chemical change has occurred?
    Production of gas.
    Change in color only.
    Change in size.
    Dissolving in water.
    30s
  • Q6
    Which of the following processes is considered a chemical change?
    Freezing water.
    Shredding a document.
    Mixing salt and water.
    Burning paper.
    30s
  • Q7
    Which scenario is an example of a physical change?
    Fermenting grapes into wine.
    Cooking an egg.
    Crushing a can.
    Baking bread.
    30s
  • Q8
    Which of the following is a characteristic of a physical change?
    New substances are formed.
    Energy is absorbed or released.
    It is always irreversible.
    The composition of the substance remains the same.
    30s
  • Q9
    Which of the following is a sign of a chemical change?
    The temperature increases
    An unexpected color change occurs
    The substance evaporates
    The substance freezes
    30s
  • Q10
    Which of the following is a common sign of a chemical change?
    The mixture is shaken
    Bubbles form in a liquid
    The solid melts
    The liquid becomes colder
    30s
  • Q11
    Which of the following is a sign that a chemical change may have occurred?
    The substance turns into a liquid
    A temperature change occurs
    The size of the piece changes
    The mixture is stirred
    30s
  • Q12
    During a chemical change, which of the following happens to the bonds between atoms?
    They become stronger
    They disappear completely
    They remain unchanged
    They break and form new bonds.
    30s
  • Q13
    What happens to the properties of a substance after a chemical change?
    They turn into liquid
    They double in size
    They become different from the original substance.
    They stay the same
    30s
  • Q14
    Which process best demonstrates a chemical change?
    Freezing ice cubes
    Chopping vegetables
    Mixing oil and water
    Baking a cake
    30s

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