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Separating mixtures

Quiz by Bernadette Durkin

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12 questions
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  • Q1
    Sand is a mixture?
    true
    flase
    true
    maybe
    5s
  • Q2
    Solvent is the science word for _____?
    mixture
    not sure
    salt
    water
    20s
  • Q3
    Mom is in the kitchen and is mixing nuts, raisins, M&M's, and granola for a snack. This snack is an example of_____?
    a solution
    a mixture
    a chemical reaction
    a change of state
    45s
  • Q4
    A mixture of salt and water forms a solution. True or false?
    Not sure
    True
    Definitely not a mixture.
    False
    20s
  • Q5
    A scientist dissolves 20g of salt in 80g of water. The solution is heated to evaporate very quickly. When the water evaporates how much salt will be left?
    19g
    100g
    20g
    0g
    60s
  • Q6
    A good scientist would use _______________ to filter gravel?
    just water
    water and your fingers
    water and a screen
    a magnet and water
    30s
  • Q7
    A teacher adds a white solid to a cup of water and stirs the mixture throughly. Soon the teacher cannot see the solid. The solid ________.
    broke into particles that were to small to see.
    melted
    turned into liquid
    dissappeared
    60s
  • Q8
    Solute is the science word for _____?
    a state of matter
    pure material that is not a mixture
    a substance that dissolves in a solvent to form a solution
    something transparent
    45s
  • Q9
    A student stirs a mixture of salt and sand into a cup of water. He pours the mixture into a funnel with a white filter paper. Which statement is true?
    The sand goes through the filter paper, but the slat does not.
    The salt particle are small enough to go through the filter.
    The sand and salt can't be separated this way.
    The filter traps all the sand and some of the salt.
    120s
  • Q10
    It's best to use a filter to separate salt from water. True or false?
    False
    True
    5s
  • Q11
    A girl mixes water and a solid material. The solid material dissolves into the water and the water is transparent. How does the mass of the water alone compare to the mass of the solution?
    The mass of the water alone is the same as the mass of the solution.
    The mass of the water alone is the greater than the mass of the solution.
    You can't tell from the information that is given.
    The mass of the water alone is less that the mass of the solution.
    120s
  • Q12
    If you need to separate a mixture of gravel, powder, and salt you will have to use _________.
    a screen and water.
    a funnel, and a filter.
    a magnet and a filter.
    water, a screen, a filter, and a dish to evaporate the salt.
    120s

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