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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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  1. Question 1

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

    • A. The water disappears.
    • B. Two layers, with the oil floating on top.
    • C. One clear liquid.
    • D. The oil sinks to the bottom.
  2. Question 2

    True or false? A solution forms when a substance dissolves in a liquid.

    • A. True
    • B. False
  3. Question 3

    Is this a solution or a mixture that is not a solution: salt stirred into water?

    • A. solution
    • B. mixture that is not a solution
  4. Question 4

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

    • A. The sand dissolves completely.
    • B. The sand turns into salt.
    • C. The water turns into sand.
    • D. The sand settles at the bottom.
  5. Question 5

    True or false? Oil dissolves completely in water.

    • A. True
    • B. False
  6. Question 6

    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
  7. Question 7

    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.
  8. Question 8

    True or false? Every mixture is a solution.

    • A. True
    • B. False
  9. Question 9

    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
  10. Question 10

    Which statement about every solution is true?

    • A. It always has a solid at the bottom.
    • B. It is always cloudy.
    • C. It always has two layers.
    • D. It is see-through, though it may be coloured.
  11. Question 11

    True or false? Oil dissolves completely in water.

    • A. True
    • B. False
  12. Question 12

    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
  13. Question 13

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

    • A. The sand settles at the bottom.
    • B. The sand turns into salt.
    • C. The sand dissolves completely.
    • D. The water turns into sand.
  14. Question 14

    True or false? Every mixture is a solution.

    • A. True
    • B. False
  15. Question 15

    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
  16. Question 16

    Which statement about every solution is true?

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

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Answer key: Mixture or solution? Tell them apart

  1. 1. B. Two layers, with the oil floating on top.

  2. 2. A. True

  3. 3. A. solution

  4. 4. D. The sand settles at the bottom.

  5. 5. B. False

  6. 6. A. solution

  7. 7. A. The sand settles at the bottom.

  8. 8. B. False

  9. 9. A. solution

  10. 10. D. It is see-through, though it may be coloured.

  11. 11. B. False

  12. 12. A. solution

  13. 13. A. The sand settles at the bottom.

  14. 14. B. False

  15. 15. A. solution

  16. 16. B. It is see-through, though it may be coloured.