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6th grade materials and their properties

6th grade (Year 7 in England) · 14 questions · Common Core: NGSS.MS-PS1-2, NGSS.MS-PS1-3 · England: KS3 Chemistry: Pure and impure substances, KS3 Chemistry: The periodic table (metals and non-metals)

Name

Date

Score/ 14

  1. Question 1

    Which technique is best to separate pure water from sea water?

    • A. filtration
    • B. chromatography
    • C. fractional distillation
    • D. simple distillation

  2. Question 2

    Is this property typical of metals or non-metals: a gas at room temperature, like oxygen?

    • A. typical of metals
    • B. typical of non-metals

  3. Question 3

    An element has these properties: silvery liquid at room temperature, conducts electricity. Is it a metal or a non-metal?

    • A. metal
    • B. non-metal

  4. Question 4

    12 g of salt is dissolved in 150 g of water. What is the mass of the solution, in g?

    Answerg

  5. Question 5

    In simple distillation, what is the job of the condenser?

    • A. to dissolve the salt
    • B. to heat the mixture
    • C. to cool the vapour so it turns back into a liquid
    • D. to filter out solids

  6. Question 6

    Which word describes this: a substance that will not dissolve?

    • A. insoluble
    • B. solute
    • C. solvent
    • D. saturated solution

  7. Question 7

    Metals and non-metals: which statement is NOT true?

    • A. Most elements in the periodic table are metals.
    • B. Graphite is a form of carbon that conducts electricity.
    • C. All metals are magnetic.
    • D. Mercury is a metal that is liquid at room temperature.

  8. Question 8

    Why does sugar dissolve faster in hot tea than in iced tea?

    • A. Sugar melts in hot tea
    • B. Ice stops sugar existing
    • C. Hot tea has more water in it
    • D. Particles move faster, so solvent particles break the sugar apart more quickly

  9. Question 9

    Which technique is best to separate drinkable water from muddy salty water on a survival course?

    • A. chromatography
    • B. simple distillation
    • C. fractional distillation
    • D. evaporation or crystallisation

  10. Question 10

    Is this property typical of metals or non-metals: can be hammered into sheets (malleable)?

    • A. typical of metals
    • B. typical of non-metals

  11. Question 11

    An element has these properties: dark purple-black crystals that shatter when hit, poor conductor. Is it a metal or a non-metal?

    • A. metal
    • B. non-metal

  12. Question 12

    5 g of salt is dissolved in 100 g of water. What is the mass of the solution, in g?

    Answerg

  13. Question 13

    Countries such as Saudi Arabia get much of their drinking water from the sea. Which method is used on a large scale?

    • A. filtration through sand only
    • B. adding more salt
    • C. desalination by distillation or reverse osmosis
    • D. chromatography

  14. Question 14

    Which word describes this: a solution in which no more solute will dissolve?

    • A. solution
    • B. saturated solution
    • C. solute
    • D. solvent

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Answer key: 6th grade materials and their properties

  1. 1. D. simple distillation

  2. 2. B. typical of non-metals

  3. 3. A. metal

  4. 4. 162 g

  5. 5. C. to cool the vapour so it turns back into a liquid

  6. 6. A. insoluble

  7. 7. C. All metals are magnetic.

  8. 8. D. Particles move faster, so solvent particles break the sugar apart more quickly

  9. 9. B. simple distillation

  10. 10. A. typical of metals

  11. 11. B. non-metal

  12. 12. 105 g

  13. 13. C. desalination by distillation or reverse osmosis

  14. 14. B. saturated solution