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Mixture or solution? Tell them apart

5th grade (Year 6 in England) · 16 questions · Common Core: NGSS.5-PS1-4, NGSS.5-PS1-3 · England: KS2 Y5 Properties and changes of materials

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Date

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  1. Question 1

    Is this a solution or a mixture that is not a solution: instant coffee in hot water?

    • A. solution
    • B. mixture that is not a solution

  2. Question 2

    Oil and water are shaken together, then left. What do you see?

    • A. The water disappears.
    • B. The oil sinks to the bottom.
    • C. Two layers, with the oil floating on top.
    • D. One clear liquid.

  3. Question 3

    True or false? Oil dissolves completely in water.

    • A. True
    • B. False

  4. Question 4

    Is this a solution or a mixture that is not a solution: sand and water?

    • A. solution
    • B. mixture that is not a solution

  5. Question 5

    Is air a mixture?

    • A. No, air is empty space.
    • B. Yes, it is a mixture of gases such as nitrogen, oxygen and carbon dioxide.
    • C. No, air is one single substance.
    • D. Yes, it is a mixture of water and sand.

  6. Question 6

    True or false? Every mixture is a solution.

    • A. True
    • B. False

  7. Question 7

    Is this a solution or a mixture that is not a solution: sugar in hot tea?

    • A. solution
    • B. mixture that is not a solution

  8. Question 8

    Which statement about every solution is true?

    • A. It always has two layers.
    • B. It is see-through, though it may be coloured.
    • C. It is always cloudy.
    • D. It always has a solid at the bottom.

  9. Question 9

    True or false? Salt water is a solution.

    • A. True
    • B. False

  10. Question 10

    Is this a solution or a mixture that is not a solution: sugar in hot tea?

    • A. solution
    • B. mixture that is not a solution

  11. Question 11

    Sand is stirred into water. After a few minutes, what happens?

    • A. The sand settles at the bottom.
    • B. The sand dissolves completely.
    • C. The sand turns into salt.
    • D. The water turns into sand.

  12. Question 12

    True or false? Salt water is a solution.

    • A. True
    • B. False

  13. Question 13

    Is this a solution or a mixture that is not a solution: a bowl of cereal and milk?

    • A. solution
    • B. mixture that is not a solution

  14. Question 14

    Sand is stirred into water. After a few minutes, what happens?

    • A. The sand turns into salt.
    • B. The sand settles at the bottom.
    • C. The water turns into sand.
    • D. The sand dissolves completely.

  15. Question 15

    True or false? Every solution is a mixture.

    • A. True
    • B. False

  16. Question 16

    Is this a solution or a mixture that is not a solution: muddy water?

    • A. solution
    • B. mixture that is not a solution

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  1. solution
  2. Two layers, with the oil floating on top.
  3. False
  4. mixture that is not a solution
  5. Yes, it is a mixture of gases such as nitrogen, oxygen and carbon dioxide.
  6. False
  7. solution
  8. It is see-through, though it may be coloured.
  9. True
  10. solution
  11. The sand settles at the bottom.
  12. True
  13. mixture that is not a solution
  14. The sand settles at the bottom.
  15. True
  16. mixture that is not a solution